UPSC Prelims 2022 Question Paper with Answers

Statements 1 and 3 are correct; Statement 2 is incorrect. Mandamus (meaning 'we command') issues to compel a public body to perform a public duty. Statement 1 is correct: mandamus does not lie against purely private organisations unless they are entrusted with a public or statutory duty. Statement 2 is incorrect: mandamus CAN lie against a Government Company because government companies are 'State' within the meaning of Article 12 and are subject to constitutional obligations; the Supreme Court has consistently held that writs are maintainable against government-owned entities exercising public functions. Statement 3 is correct: Quo Warranto (challenging unlawful occupation of a public office) is a writ that can be sought by any public-spirited person — it is not limited to the aggrieved party alone, unlike other writs. UPSC 2022 official answer confirmed this as the correct response.

Only the motion of no-confidence against the Council of Ministers is an exclusive power of Lok Sabha. Article 75(3) provides that the Council of Ministers shall be collectively responsible to the Lok Sabha — only Lok Sabha can pass a no-confidence motion and bring down the government. For option 1 (ratifying Emergency): Under Article 352(4), a proclamation of Emergency must be approved by resolutions passed by BOTH Houses of Parliament — it is not an exclusive Lok Sabha power. For option 3 (impeachment of President): Under Article 61, impeachment can be initiated by EITHER House of Parliament with a two-thirds majority — it is not an exclusive Lok Sabha power. UPSC 2022 confirmed 'only 2' as the correct answer. This tests precise knowledge of exclusive versus shared parliamentary powers.

Statement 1 is incorrect and Statement 2 is correct. Regarding Statement 1: Para 2(2) of the Tenth Schedule actually PERMITS a nominated member to join a political party within six months of taking their seat in the House without incurring disqualification. After six months, if they join a party, they are disqualified. The statement inverts this provision by saying they 'cannot join' — which is wrong. Regarding Statement 2: The Tenth Schedule (added by 52nd Constitutional Amendment Act, 1985) contains no time limit within which the Speaker/Chairman must decide a disqualification petition. The Supreme Court in Kihoto Hollohan v. Zachilhu (1992) upheld the Tenth Schedule but this lacuna has been repeatedly criticised. The Supreme Court has issued directives for time-bound decisions, but the law itself prescribes no deadline — a significant lacuna in the anti-defection regime.

Statements 1 and 3 are correct; Statements 2 and 4 are incorrect. Statement 1 is correct: Rule 8 of the Rules of Procedure and Conduct of Business in Lok Sabha vests the authority to fix the date of the Deputy Speaker election in the Speaker. Statement 3 is correct: when the Deputy Speaker presides over a House sitting (because the Speaker is absent or the office is vacant), they exercise all the powers of the Speaker — and there is no provision for appeal against the presiding officer's rulings. Statement 2 is incorrect: there is no constitutional, statutory, or rule-based mandatory requirement regarding the party affiliation of the Deputy Speaker; by convention the position has sometimes been offered to the opposition, but it is not mandatory. Statement 4 is incorrect: there is no established practice of the motion being moved by the Speaker and seconded by the PM. UPSC 2022 officially confirmed '1 and 3 only.'

Statement 1 is incorrect and Statement 2 is correct. Statement 1 is incorrect: the Constitution of India does not classify ministers into any ranks. Article 74 merely provides for a Council of Ministers with the Prime Minister at the head to aid and advise the President. The classification into Cabinet Ministers, Ministers of State (with or without independent charge), and Deputy Ministers is a constitutional convention, not a constitutional provision. Statement 2 is correct: the 91st Constitutional Amendment Act, 2003 inserted Article 75(1A), capping the size of the Union Council of Ministers (including the Prime Minister) at 15% of the total membership of Lok Sabha. A parallel provision was added for State Councils of Ministers under Article 164(1A). This amendment was enacted to prevent the excessive expansion of ministries used for coalition management, as recommended by the National Commission to Review the Working of the Constitution.

Both statements are incorrect. Statement 1 is incorrect: Article 88 grants the right to participate in parliamentary proceedings to Ministers and the Attorney General of India — the Solicitor General is NOT mentioned in Article 88 and has no such constitutional right. The Solicitor General is a statutory official (not mentioned in the Constitution) and does not have the right to participate in parliamentary sittings. Statement 2 is incorrect: Article 76(4) provides that the Attorney General holds office during the pleasure of the President — not on the basis of the government's continuation. There is no constitutional provision requiring the AG to resign when the government changes. Conventionally, AGs may resign to allow a new government to appoint its own legal advisor, but this is not a constitutional requirement. UPSC 2022 confirmed 'neither 1 nor 2' as the answer.

Statements 1, 2, and 4 are correct; Statement 3 is incorrect. Statement 1 is correct: the H.N. Sanyal Committee (constituted in 1961, reported in 1963) examined the law on contempt of courts, and its recommendations led to the Contempt of Courts Act, 1971 which consolidated and amended the law on the subject. Statement 2 is correct: Article 129 declares the Supreme Court a court of record with the power to punish for contempt of itself; Article 215 similarly declares every High Court a court of record with power to punish contempt of itself. Statement 3 is incorrect: Civil Contempt (wilful disobedience of court orders) and Criminal Contempt (publications scandalising the court) are defined in the Contempt of Courts Act, 1971 — NOT in the Constitution. Statement 4 is correct: Entry 77 of List I (Union List) and Entry 14 of List III (Concurrent List) vest Parliament with the power to make laws on contempt of court. UPSC 2022 confirmed '1, 2 and 4' as correct.

Statements 2 and 3 are correct; Statement 1 is incorrect. Statement 1 is incorrect: unlike certain Money Bills which require the President's prior recommendation, a Constitution Amendment Bill under Article 368 requires NO prior recommendation of the President — it can be introduced in either House by any member. Statement 2 is correct: the 24th Constitutional Amendment Act, 1971 amended Article 368 to make it obligatory for the President to give assent to a Constitution Amendment Bill — the President has no power to withhold assent or return such a bill for reconsideration, unlike ordinary legislation. Statement 3 is correct: every Constitution Amendment Bill must be passed by each House separately by a special majority (majority of total membership + two-thirds of members present and voting); there is NO provision under Article 368 for a joint sitting to resolve deadlocks, unlike for ordinary bills under Article 108. UPSC 2022 confirmed '2 and 3 only.'

The Fifth Schedule (Article 244(1)) provides for the administration and control of Scheduled Areas and Scheduled Tribes in states other than Assam, Meghalaya, Tripura, and Mizoram (those states are under the Sixth Schedule). The most significant consequence of an area being brought under the Fifth Schedule is that the Governor of the State is empowered under Paragraph 5(2) to make regulations to prohibit or restrict the transfer of land by or among members of the Scheduled Tribes. This protects tribal land from alienation to non-tribals — the primary purpose of the Fifth Schedule. The Samatha Judgment (1997) of the Supreme Court reinforced this protection, holding that even government land in Scheduled Areas cannot be leased to non-tribals for mining. Option B (local self-government) is provided separately by PESA (Panchayats Extension to Scheduled Areas Act, 1996). Options C and D have no basis in the Fifth Schedule provisions. UPSC 2022 confirmed option A.

India's Sovereign Green Bonds were announced in Union Budget 2022-23 and the framework was approved in November 2022; the proceeds are earmarked for public sector projects that reduce the carbon intensity of the economy — explicitly Option C. The eligible project categories are broader than just renewable energy (Option A being wrong): they include sustainable water and waste management, energy efficiency, green buildings, climate change adaptation, and biodiversity conservation. The bonds have been issued in Indian Rupees, not exclusively in foreign currency (Option B wrong), with the first tranche of ₹8,000 crore issued on 25 January 2023 and a second tranche in February 2023. Both domestic and foreign investors can participate — they are not restricted to FIIs (Option D wrong). India became one of the few emerging markets to issue Sovereign Green Bonds in its own currency, reducing exchange rate risk for the government.

The Direct Tax Vivad se Vishwas (DTVSV) Act, 2020 was enacted on 17 March 2020 to reduce the massive backlog of direct tax litigation pending before appellate forums including ITAT, High Courts, and the Supreme Court — Statement 1 is correct. Under the scheme, taxpayers were required to pay only the disputed tax amount — interest and penalty were fully waived if payment was made by 31 March 2020, and only a partial additional amount was applicable for late payments — making Statement 2 incorrect (the scheme does not require payment of full interest and penalty). The scheme covered disputes pending as of 31 January 2020, and the deadline was extended multiple times up to March 2021. A new DTVSV Scheme 2024 was also launched for disputes arising after 31 January 2020. This type of tax amnesty scheme is examined in UPSC as a direct tax policy instrument to reduce litigation-related revenue uncertainty.

Statement 1 is incorrect: to curb high inflation, RBI conducts Open Market Operations (OMO) by selling government bonds — this absorbs excess liquidity from the system, pushing up interest rates and reducing inflationary pressure; buying bonds would inject liquidity, worsening inflation. Statement 2 is correct: when the rupee depreciates rapidly, RBI intervenes in forex markets by selling US dollars (from its foreign exchange reserves) to increase dollar supply, thereby supporting the rupee. Statement 3 is correct: higher US Federal Reserve interest rates make US assets more attractive relative to Indian assets — global capital (especially "hot money"/carry trade flows) moves out of India to the US seeking higher returns, putting downward pressure on the rupee and Indian financial markets. This was vividly illustrated in 2022 when the Fed's aggressive rate hikes caused significant FPI outflows from India. Hence 2 and 3 only.

Statement 1 is correct: the PLI scheme provides financial incentives — typically ranging from 4% to 6% of the value of eligible products — calculated on incremental production or sales above a defined base year threshold, incentivising scale-up rather than simply rewarding existing production capacity. Statement 2 is incorrect: PLI is not restricted to foreign companies — it is explicitly designed to benefit both domestic Indian manufacturers and foreign companies establishing manufacturing units in India, with the dual goal of boosting domestic production and attracting international investment. The PLI scheme covers 14 strategic sectors including mobile phones, pharmaceuticals, automobiles, textiles, specialty steel, drones, and solar PV modules, with a total outlay of approximately ₹1.97 lakh crore. As of 2024, PLI has attracted investments from domestic leaders like Tata, Mahindra, and Sun Pharma as well as foreign firms. Hence 1 only.

Gig workers are defined under Section 2(35) of the Code on Social Security, 2020 as persons who "perform work or participate in a work arrangement and earn from such activities outside of traditional employer-employee relationships." They typically work through digital aggregator platforms such as Ola, Uber, Zomato, Swiggy, Urban Company, and similar apps, in flexible, temporary, or freelance arrangements (Option B correct). They differ from informal daily-wage workers (Option A) who have no platform intermediation, seasonal migrants (Option C) whose defining characteristic is inter-state mobility, and BPL rural workers (Option D) whose defining characteristic is income level. India is estimated to have over 7.7 million gig workers as of recent estimates, with the number expected to grow to 23.5 million by 2029-30. The Code on Social Security 2020 provides the first formal legal recognition of gig workers and mandates aggregators to contribute to social security funds for them.

Statement 1 is incorrect: India does not have the highest number of GI tags globally. According to WIPO's IP Facts and Figures 2024, China leads with approximately 9,785 GIs in force, followed by Germany (7,586) and Hungary (7,290); India had approximately 530-605 GIs registered as of 2024, placing it well behind the global leaders. Statement 2 is correct: the Geographical Indications of Goods (Registration and Protection) Act, 1999 provides GI protection for agricultural goods, natural goods, and manufactured goods — including handicrafts, textiles, food products, and artisanal items. Statement 3 is correct: GI protection in India is indeed governed by this Act (No. 48 of 1999), administered by the Controller General of Patents, Designs and Trade Marks under the Ministry of Commerce. Darjeeling Tea (2004) was India's first GI-registered product. The Act aligns with TRIPS Agreement obligations under WTO. Hence 2 and 3 only.

Statements 1, 2, and 4 are correct. Monazite is a phosphate mineral that is the world's primary source of rare earth elements (cerium, lanthanum, neodymium, etc.) and also contains significant concentrations of thorium (a nuclear fuel), making it a strategically critical mineral for India's three-stage nuclear programme. Because thorium is a "prescribed substance" under the Atomic Energy Act, 1962, monazite can only be mined, processed, or exported by government-authorised bodies or public-sector undertakings like IREL (India Rare Earths Limited). Statement 3 is incorrect: monazite deposits are concentrated in specific coastal districts — Tirunelveli, Thoothukudi, and Kanyakumari in Tamil Nadu; Kollam, Alappuzha, and Thrissur in Kerala; and parts of Odisha — not uniformly across the "entire" Indian coastline. India holds about 35% of the world's monazite reserves.

LAKE FAGUIBINE in MALI (West Africa) was once one of the largest lakes in the Sahel region but has dramatically DRIED UP since the 1970s and 1980s, with the lakebed turning into a desert. KEY FACTS: Located in the Timbuktu region of northern Mali, Lake Faguibine was historically a critical seasonal lake fed by floodwaters from the Niger River through a network of channels. At its peak, it covered ~590 sq km and supported a thriving community of fishing, agriculture, and pastoralism. CAUSES OF DRYING: (a) Severe DROUGHT in the Sahel region from 1972-73, intensifying through the 1980s. (b) Reduced rainfall and shrinking Niger River floods affected by upstream water diversion. (c) DESERTIFICATION accelerated by climate change. (d) Sand dune encroachment blocking the connecting channels from the Niger. (e) Overgrazing and removal of vegetation. The lake has remained dry for over 40 years. CONSEQUENCES: Loss of livelihoods for thousands of fishermen, farmers, and pastoralists; mass migration; environmental degradation; food insecurity; rise of insurgency in northern Mali (2012 onwards) partly linked to climate-driven displacement. (a) LAKE VICTORIA — Africa's largest lake (Uganda/Kenya/Tanzania), still very much alive. (c) LAKE OGUTA — small lake in Imo State, Nigeria, intact. (d) LAKE VOLTA — large reservoir in Ghana created by the Akosombo Dam (1965), one of the world's largest artificial lakes by area, very much existing. UPSC 2022 official answer: B.

The GANDIKOTA CANYON, often called the "GRAND CANYON OF INDIA," was created by the PENNAR RIVER (also spelled Penner) as it carved through the Erramala range of hills in YSR Kadapa district of Andhra Pradesh. The canyon is approximately 300 metres deep with dramatic cliff walls of red granite. THE NAME: "Gandi" means "gorge" or "narrow passage" and "kota" means "fort" in Telugu — so "Gandikota" literally means "fort in a gorge." HISTORY: The Gandikota fort, perched on the canyon edge, was built in the 13th century by the Chalukyas, expanded by the Kakatiyas, and later held by the Vijayanagara Empire and the Pemmasani Nayakas. Marco Polo and other travellers wrote about its strategic importance. PENNAR RIVER: Originates in the Nandi Hills of Chikkaballapur district, Karnataka, flows eastward through Karnataka and Andhra Pradesh, and empties into the Bay of Bengal near Nellore. It is ~597 km long. The river is the second-largest in coastal Andhra after the Krishna. (a) CAUVERY — flows through Karnataka and Tamil Nadu, has its own famous gorges like Hogenakkal, but not Gandikota. (b) MANJIRA — tributary of the Godavari, flows through Karnataka, Maharashtra, and Telangana — not in this region. (d) TUNGABHADRA — major tributary of the Krishna, flows through Karnataka and Andhra Pradesh, famous for the Hampi/Vijayanagara ruins, but not Gandikota. UPSC 2022 official answer: C.

The LEVANT is a historical and geographical term for the region along the EASTERN MEDITERRANEAN SHORES, encompassing the modern countries of LEBANON, SYRIA, PALESTINE/ISRAEL, JORDAN, and southern TURKEY (including the Hatay province). The term derives from Italian "Levante" or French "soleil levant" meaning "rising sun" — referring to the easterly direction where the sun rises (from a European perspective). Sometimes the broader definition includes parts of CYPRUS and the Sinai Peninsula of Egypt. HISTORICAL SIGNIFICANCE: The Levant was the cradle of multiple ancient civilizations — Phoenicians (originated in present-day Lebanon), Canaanites, Hebrews, Aramaeans, Assyrians at various points. Major trading hub between Europe, Africa, and Asia along the Eastern Mediterranean. The region was the heart of the Crusader states (12th-13th century). MODERN CONTEXT: Frequently in the news due to the Israeli-Palestinian conflict, Syrian civil war (2011-), Lebanese political crises, and the rise/fall of ISIS (Islamic State of Iraq and the Levant — ISIL — used this name to evoke historical Islamic caliphates). (b) North African shores from Egypt to Morocco — That is the MAGHREB or "Barbary Coast" region. (c) Persian Gulf and Horn of Africa — Different region; includes Iran, Iraq, Saudi Arabia, Yemen, Somalia, Djibouti. (d) Entire Mediterranean coast — Too broad; the Levant is specifically the eastern shores. UPSC 2022 official answer: A.

TAJIKISTAN, TURKMENISTAN, and UZBEKISTAN — three of the Central Asian republics — share land borders with AFGHANISTAN to its north. Azerbaijan and Kyrgyzstan do NOT share borders with Afghanistan. AFGHANISTAN'S BORDERS (clockwise from north): (a) TURKMENISTAN to the northwest (~744 km border) — along the Amu Darya river and the Kushka region. (b) UZBEKISTAN to the north (~144 km border) — across the Amu Darya. (c) TAJIKISTAN to the northeast (~1,206 km border) — the longest of Afghanistan's northern borders, running along the Amu Darya and Panj rivers; also the Wakhan Corridor extends to the Pamir Mountains in Tajikistan. (d) CHINA to the far northeast — the famous WAKHAN CORRIDOR (~76 km) — narrowest international border in the world, intentionally created in 1893 as a buffer between British India and the Russian Empire. (e) PAKISTAN to the east and south (~2,640 km) — the longest border, the controversial DURAND LINE drawn in 1893. (f) IRAN to the west (~921 km). (1) AZERBAIJAN — INCORRECT. Located in the Caucasus region between the Caspian and Black Seas, Azerbaijan shares borders with Russia, Georgia, Armenia, Iran, and Turkey — but NOT Afghanistan. They are separated by Iran and the Caspian Sea. (2) KYRGYZSTAN — INCORRECT. Located in Central Asia, Kyrgyzstan borders Kazakhstan, China, Tajikistan, and Uzbekistan — but NOT Afghanistan. The Tajikistan-Kyrgyzstan border separates them from Afghanistan. (3) TAJIKISTAN — CORRECT. (4) TURKMENISTAN — CORRECT. (5) UZBEKISTAN — CORRECT. Hence 3, 4 and 5 only — Option C. UPSC 2022 official answer: C.

Statement 1 is incorrect: the Mongols first attacked India during the reign of Iltutmish (1221 CE), when Chengiz Khan pursued Jalaluddin Mangabarni to the Indus. Statement 2 is correct: Mongols besieged Delhi in 1303 under Ala-ud-din Khalji but were repulsed. Statement 3 is incorrect: there is no historical evidence of Muhammad-bin-Tughluq losing frontier territory to Mongols; by his reign, Mongol pressure had largely subsided.

Statement 1 is incorrect: By the time the Dutch established significant factories, the Gajapati kingdom had declined. The Dutch set up factories at Pulicat, Masulipatnam, and Nagapatnam. Statement 2 is correct: Albuquerque captured Goa from Yusuf Adil Shah of the Bijapur Sultanate in 1510. Statement 3 is correct: Francis Day leased Madrasapatnam from Damarla Venkatadri (Nayak of Wandiwash), a representative of the Vijayanagara successor state, to build Fort St. George in 1639.

All three statements are correct per Kautilya's Arthashastra (Book III). Statement 1: A person could be enslaved as judicial punishment for certain crimes. Statement 2: The Arthashastra states that a female slave (dasi) who bore her master a son would be manumitted (freed). Statement 3: A son fathered by the master on a female slave was to be treated as a legitimate son (putra) with rights to inheritance. These provisions reflect a more regulated and humane approach to slavery than was common in other ancient societies. The Arthashastra distinguishes between different categories of slaves (ahitaka, vyavahita, etc.).

Sangam literature (composed roughly between 300 BCE – 300 CE) does mention the fourfold varna system (Brahmin, Kshatriya, Vaishya, Shudra), showing that the north Indian social framework was known to Tamil poets. However, the jati (caste) system as it evolved later was less rigidly enforced. Sangam poems are rich in references to material culture — trade, war, agriculture, urban life and ornaments are vividly described. The Sangam corpus also includes references to magical beliefs and superstitions treated as real forces.

Ramanuja (1017–1137 CE), the philosopher-saint of the Sri Vaishnava tradition, expounded Vishishtadvaita (qualified non-dualism) — the philosophy that individual souls (jivas) and the material world (jagat) are real but form the body of Brahman (identified as Vishnu-Narayana). He argued that Bhakti (devotion) — specifically loving surrender (prapatti) to Vishnu — is the supreme path to liberation (moksha). This directly opposed Adi Shankaracharya's Advaita doctrine that Brahman alone is real and the world is maya (illusion).

All three definitions are correct. Green Carbon refers to the carbon stored in terrestrial vegetation and soils — forests, grasslands, peatlands on land; global forests store approximately 861 billion tonnes of carbon. Blue Carbon is the carbon captured and stored by coastal and marine ecosystems (mangroves, seagrasses, tidal salt marshes), stored in both biomass and in water-logged sediments where decomposition is slow. Brown Carbon (BrC) is a distinct class of light-absorbing carbonaceous aerosols — complex organic compounds released during incomplete combustion of biomass (forest fires, agricultural burning) and biofuel; unlike black carbon (soot), brown carbon absorbs primarily in the UV-visible spectrum and has significant climate and health implications. All three types are scientifically recognised categories studied in climate science policy discussions. Black carbon (soot from fossil fuel combustion) is sometimes additionally distinguished from brown carbon as a fourth type.

Microplastics are defined as plastic particles smaller than 5 mm in their largest dimension, according to the definition proposed by Arthur and Baker (2009) and adopted by NOAA. They originate from two sources: primary microplastics (intentionally manufactured at small size — microbeads in cosmetics and personal care products, plastic pellets/nurdles used in manufacturing, synthetic textile fibres shed during washing) and secondary microplastics (fragments from the physical and UV degradation of larger plastic items). They are found across all environments — ocean surface, deep-sea sediments, freshwater lakes and rivers, agricultural soils, urban air, mountain snow, and even the Mariana Trench. They are not biodegradable and persist for hundreds of years, accumulating in food chains through bioaccumulation. Microplastics have been detected in human blood (2022 study), lung tissue, placenta, breast milk, and testicular tissue, raising serious public health concerns. Options 2, 3, and 4 are all factually incorrect.

Statements 1 and 3 are correct. The IPCC was established in 1988 by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO), initially at the request of the G7 nations; it currently has 195 member governments. The Summary for Policymakers (SPM) sections of each IPCC Assessment Report are approved line by line by representatives of all member governments in plenary sessions before publication — a process that ensures political buy-in and makes IPCC reports the most widely endorsed scientific-policy documents in the world (though this process can weaken scientific language through negotiation). Statement 2 is incorrect: the IPCC does NOT conduct its own original scientific research. The Panel's mandate is to assess, review, and synthesise published peer-reviewed scientific literature on climate change, its impacts, adaptation options, and mitigation strategies — the work is done by thousands of volunteer scientists who review existing research. The Sixth Assessment Report (AR6), completed in 2023, synthesised over 14,000 papers. This non-research, assessment-only role is one of the most frequently tested UPSC facts about the IPCC.

Option B (2 and 4 only — Nitrogen oxides and Sulphur dioxide) is CORRECT. ACID RAIN refers to any form of precipitation (rain, snow, fog, or dry deposition) with a pH less than 5.6 — significantly more acidic than normal rainfall. The TWO PRIMARY CAUSES of acid rain are: (2) NITROGEN OXIDES (NOx — primarily NO and NO2) — emitted mainly by motor vehicles, thermal power plants, and high-temperature combustion. In the atmosphere, NOx oxidises and combines with water to form NITRIC ACID (HNO3): 4NO + 3O2 + 2H2O → 4HNO3. (4) SULPHUR DIOXIDE (SO2) — emitted mainly by COAL-FIRED power plants, oil refineries, and metal smelting. In the atmosphere, SO2 is oxidised and reacts with water to form SULPHURIC ACID (H2SO4): 2SO2 + O2 + 2H2O → 2H2SO4. These two acids precipitate down as acid rain. (1) CARBON MONOXIDE (CO) — a product of incomplete combustion that is a TOXIC POLLUTANT but does NOT cause acid rain. CO does not form an acid in atmospheric chemistry. (3) OZONE (O3) — at ground level, ozone is a major secondary pollutant and component of photochemical smog, but it is NOT an acid rain precursor. Stratospheric ozone protects from UV; tropospheric ozone is harmful to health and crops. EFFECTS OF ACID RAIN: Damages forests (e.g., the German Schwarzwald), acidifies lakes and streams (killing fish), corrodes monuments (Taj Mahal yellowing partly attributed to SO2 from nearby Mathura refinery), damages buildings, leaches nutrients from soil, and affects crop yields. CONTROL: SO2 scrubbers (FGD) on power plants; switch to low-sulphur fuels; catalytic converters on vehicles; renewable energy. UPSC 2022 official answer: B.

Option B (Statement 2 only) is CORRECT. Statement 1 is INCORRECT. India's LARGEST solar power park is the BHADLA SOLAR PARK in Jodhpur district of RAJASTHAN — NOT Madhya Pradesh. With an installed capacity of 2,245 MW spread across approximately 14,000 acres in the Thar desert, Bhadla was the world's largest solar park when fully commissioned in 2020. (Note: Rewa Ultra Mega Solar in Madhya Pradesh, ~750 MW, is significant but not the largest.) Statement 2 is CORRECT. COCHIN INTERNATIONAL AIRPORT (CIAL) in Kerala became the WORLD'S FIRST FULLY SOLAR-POWERED AIRPORT in August 2015. CIAL set up a 12 MW solar PV plant on 45 acres of land near the airport, generating ~50,000 units of electricity per day — enough to meet 100% of the airport's daily energy needs. CIAL was awarded the United Nations CHAMPION OF THE EARTH AWARD in 2018 for this pioneering achievement. The capacity has since been expanded to over 40 MW. Statement 3 is INCORRECT. India's largest FLOATING SOLAR POWER project is at the RAMAGUNDAM Thermal Power Station in PEDDAPALLI district, TELANGANA — NOT Rajasthan. The 100 MW project, commissioned by NTPC in July 2022, is spread across 500 acres on the cooling reservoir of the Ramagundam thermal plant. By 2024, NTPC also commissioned the larger 600 MW Omkareshwar Floating Solar Park on the Narmada in Madhya Pradesh, but Ramagundam was the largest at the time of the 2022 question. UPSC 2022 official answer: B.

Option B (2 only) is CORRECT. CLOUDS have a complex DUAL EFFECT on Earth's temperature — they both REFLECT incoming solar (shortwave) radiation back to space (cooling effect) AND TRAP outgoing terrestrial (longwave/infrared) radiation (warming/greenhouse effect). The NET effect depends on the cloud TYPE, ALTITUDE, and THICKNESS. Statement 1 is INCORRECT. The NET effect of clouds on Earth's climate is COOLING, not warming. According to IPCC reports, clouds have a NET COOLING effect of approximately -20 W/m² on the Earth's energy balance. Without clouds, Earth would be significantly WARMER, not cooler. Statement 2 is CORRECT. LOW, THICK CLOUDS (such as stratus and cumulus) have a HIGH ALBEDO — they reflect a large fraction of incoming sunlight back to space before it can warm the Earth's surface. Their tops, being relatively warm and close to the surface, also emit nearly as much infrared radiation as the surface itself, so they don't significantly trap outgoing radiation. Net effect: COOLING. By contrast, HIGH, THIN CLOUDS (cirrus) are largely transparent to incoming sunlight, but their cold tops trap outgoing infrared — net effect WARMING. CLIMATE FEEDBACK UNCERTAINTY: Cloud feedback is one of the LARGEST sources of uncertainty in climate models. As the climate warms, low-cloud fractions may decrease (positive feedback, more warming), while high cirrus may increase (additional positive feedback). UPSC 2022 official answer: B.

Option A (ANT) is CORRECT. Certain ants — most famously the LEAF-CUTTER ANTS of the tribe ATTINI (notably the genera Atta and Acromyrmex of the New World tropics) — are renowned for their sophisticated practice of FUNGICULTURE. This is one of the most remarkable examples of MUTUALISM and AGRICULTURE in the non-human animal kingdom. THE PROCESS: Worker ants harvest fresh leaves and other plant material, which they cannot digest themselves. They carry the leaves back to underground chambers in their colonies, chew them into a pulp, and use them as a SUBSTRATE on which they cultivate a specific fungus (mostly Leucoagaricus gongylophorus). The ants tend the fungus carefully — clearing away contamination, inoculating new substrate, weeding out harmful microbes. In return, the fungus produces nutritious swellings called GONGYLIDIA which the ants harvest as their primary food source. ANTIBIOTIC AID: Leaf-cutter ants also carry Pseudonocardia bacteria on their bodies — these produce antibiotics that protect the fungus garden from pathogenic Escovopsis molds. This is one of the oldest examples of biological pest control known in nature. EVOLUTIONARY HISTORY: The ant-fungus mutualism is over 50 MILLION years old — predating human agriculture by tens of millions of years. Other fungus-farming organisms include termites (genus Macrotermes in Africa) and ambrosia beetles. (b) Cockroach — not fungus farmers; some are detritivores. (c) Crab — marine, not associated with fungal cultivation. (d) Spider — predators, no fungal cultivation. UPSC 2022 official answer: A.

The Fractional Orbital Bombardment System (FOBS) places a nuclear warhead into a stable low-Earth orbit and then deorbits it to strike a target. Originally developed by the Soviet Union in the 1960s, its key advantages are an unlimited range (it can approach from any direction, including over the South Pole) and difficulty in early detection since it does not follow a predictable ballistic arc. China tested a similar capability in 2021.

A qubit (quantum bit) is the fundamental unit of information in quantum computing, analogous to the classical binary bit. Unlike a classical bit (which is either 0 or 1), a qubit can exist in a superposition of both states simultaneously, enabling quantum computers to perform certain computations exponentially faster than classical computers. India launched the National Quantum Mission in 2023 with an outlay of ₹6,003 crore.

All four platforms are open-source. Aarogya Setu's source code was released on GitHub in 2020. CoWIN was offered as a global digital public good on open-source principles. DigiLocker is built on open APIs enabling a paperless document-sharing ecosystem. DIKSHA is built on Sunbird, an open-source digital infrastructure for learning. India's "Digital Public Infrastructure" (DPI) model explicitly promotes open-source, interoperable platforms.

Hypersonic refers to speeds at or exceeding Mach 5 (five times the speed of sound, approximately 6,125 km/h at sea level). Hypersonic weapons — including Hypersonic Glide Vehicles (HGVs) and Hypersonic Cruise Missiles — travel too fast and manoeuvre too unpredictably for existing missile defence systems. India's DRDO successfully tested its Hypersonic Technology Demonstrator Vehicle (HSTDV) in September 2020, making India the fourth country after the USA, Russia, and China to demonstrate this technology.

India is a member of all three. India is a founding member of the AIIB (established 2016). India joined the MTCR in June 2016. India became a full member of the SCO in June 2017 at the Astana Summit.

All three statements are correct and directly drawn from UNCLOS provisions. Article 3 sets the territorial sea at 12 nautical miles; Article 17 grants all states the right of innocent passage; Article 55/57 defines the EEZ as extending up to 200 nautical miles from the baseline.

Option C (2 and 5 — Kyrgyzstan and Uzbekistan) is the OFFICIAL UPSC answer key, though strictly speaking the full membership is broader. The Organization of Turkic States (OTS), founded in 2009 as the Turkic Council and renamed in November 2021 at the Istanbul summit, has FIVE FULL MEMBERS: Türkiye, Azerbaijan, Kazakhstan, Kyrgyzstan, and Uzbekistan. Among the options listed in the question, Azerbaijan (1), Kyrgyzstan (2), and Uzbekistan (5) are all members — but UPSC's official answer is "2 and 5 only" because the question (as some commentators noted) became controversial; UPSC released the official key marking C. Tajikistan (3) and Turkmenistan (4) are NOT members — Turkmenistan has observer status; Tajikistan is Persian-speaking, not Turkic. OBSERVERS: Hungary (since 2018), Turkmenistan (since 2021), Northern Cyprus (since 2022). PURPOSE: Promote political, economic, and cultural cooperation among Turkic-speaking states; secretariat in Istanbul. STRATEGIC SIGNIFICANCE: OTS has gained prominence as Türkiye seeks to consolidate influence across Central Asia post-2020 Nagorno-Karabakh war, where Turkish drones helped Azerbaijan. UPSC 2022 official answer: C.

Option B is CORRECT. The SENKAKU ISLANDS (Japanese: 尖閣諸島 / Chinese: 釣魚台 Diaoyu) are a group of EIGHT uninhabited islets in the EAST CHINA SEA, located approximately 170 km north of Ishigaki Island (Japan), 170 km northeast of Taiwan, and 330 km east of mainland China. They are administered by Japan but CLAIMED by both China (PRC) and Taiwan (ROC). DISPUTE TIMELINE: Japan annexed the islands in 1895 after the First Sino-Japanese War. The US administered them post-WWII and returned them to Japan in 1972 along with Okinawa. Chinese claims intensified after 1968-69 UN surveys suggested possible oil/gas reserves nearby. In 2012, Japan's nationalisation of three islands triggered major anti-Japan protests in China and confrontation between coast guard vessels — relations have remained tense since. STRATEGIC IMPORTANCE: Sit astride critical sea lanes, contain potential hydrocarbon reserves, and lie near rich fishing grounds. They are covered by Article 5 of the US-Japan Security Treaty (confirmed by Presidents Obama, Trump, and Biden), meaning the US is obligated to defend them. INDIA RELEVANCE: Part of the broader Indo-Pacific maritime security agenda discussed in QUAD summits. (a) WRONG — confuses with Spratly/Scarborough Shoal disputes. (c) WRONG — that describes Diego Garcia. (d) WRONG — no such ICJ designation exists. UPSC 2022 official answer: B.

ALL THREE statements are CORRECT — Option D. Statement 1 is CORRECT per Article 3 of UNCLOS: "Every State has the right to establish the breadth of its territorial sea up to a limit not exceeding 12 nautical miles, measured from baselines determined in accordance with this Convention." Statement 2 is CORRECT per Article 17: "Subject to this Convention, ships of all States, whether coastal or land-locked, enjoy the right of innocent passage through the territorial sea." Innocent passage means passage that is not prejudicial to the peace, good order, or security of the coastal state — it must be continuous and expeditious. Statement 3 is CORRECT per Article 57: "The exclusive economic zone shall not extend beyond 200 nautical miles from the baselines from which the breadth of the territorial sea is measured." In the EEZ, the coastal state has sovereign rights for exploring, exploiting, conserving, and managing natural resources (living and non-living) of the waters, seabed, and subsoil. ABOUT UNCLOS: Adopted 1982 in Montego Bay, Jamaica; entered into force 1994; ratified by 168 parties including India. Often called the "Constitution for the Oceans". Establishes maritime zones: internal waters, territorial sea (12 nm), contiguous zone (24 nm), EEZ (200 nm), continental shelf, high seas, and the Area (deep seabed). India ratified UNCLOS in 1995. Notably, the USA has signed but NOT ratified UNCLOS. UPSC 2022 official answer: D.

Option C is CORRECT. BIDIBIDI is one of the world's LARGEST REFUGEE SETTLEMENTS, located in YUMBE DISTRICT in northwestern UGANDA, near the border with South Sudan. Established in August 2016 to absorb the massive influx of refugees fleeing the SOUTH SUDAN CIVIL WAR (which began in December 2013), Bidibidi rapidly grew to host over 270,000 refugees by 2017, briefly making it the largest refugee camp in the world before authorities capped admissions and opened additional sites. Most residents are South Sudanese — predominantly women and children. CONTEXT — UGANDA'S REFUGEE POLICY: Uganda has one of the most progressive refugee policies in the world. Refugees are given a plot of land for cultivation, freedom of movement, the right to work, and access to social services — making integration easier than in traditional closed camps. UNHCR has praised this model. SOUTH SUDAN CRISIS: World's youngest country (independence 2011 from Sudan) plunged into civil war between forces loyal to President Salva Kiir and former Vice-President Riek Machar; over 4 million displaced. The Revitalized Peace Agreement (R-ARCSS) was signed in 2018 but implementation remains fragile. (a) WRONG — no such gold-extraction technology. (b) WRONG — invented. (d) WRONG — invented. UPSC 2022 official answer: C.

Only statement 3 is correct. The Ayushman Bharat Digital Mission (ABDM), launched nationally in 2021, creates a digital health ecosystem with unique health IDs. Statement 1 is incorrect: adoption by private hospitals is voluntary, not mandatory. Statement 2 is incorrect: while the goal is to eventually cover all citizens, the mission does not mandate that every citizen must be part of it. Statement 3 is correct: the ABDM is specifically designed to provide portability across the country — a citizen's health records linked to their ABHA (Ayushman Bharat Health Account) ID can be accessed from any participating facility in India.

Option B (3 only) is CORRECT. The AYUSHMAN BHARAT DIGITAL MISSION (ABDM) was launched nationally on 27 September 2021 by Prime Minister Narendra Modi (after a pilot in six Union Territories from August 2020). It aims to develop the BACKBONE of India's integrated digital health infrastructure through a federated, interoperable system of ABHA (Ayushman Bharat Health Account) IDs, healthcare professional registry, healthcare facility registry, and personal health records. Statement 1 is INCORRECT. ABDM is a VOLUNTARY mission. Adoption by private and public hospitals is NOT mandatory. Hospitals voluntarily register on the Healthcare Facility Registry (HFR) to participate, and citizens voluntarily share their health data via consent management. There is no statutory mandate forcing hospitals to adopt it. Statement 2 is INCORRECT. Although ABDM eventually aims to cover all Indians, it is NOT mandatory — citizens VOLUNTARILY enrol for an ABHA ID. The 14-digit ABHA number is generated only on the citizen's consent. The mission respects individual privacy and choice; participation is opt-in, not opt-out. Statement 3 is CORRECT. ABDM provides SEAMLESS PORTABILITY of health records across the country. A patient with an ABHA ID can access their digitised health records (consultation history, prescriptions, lab reports, discharge summaries) from any participating healthcare provider in any state — eliminating the need to carry physical files. KEY COMPONENTS: ABHA Number (Health ID), ABHA Address (PHR), Healthcare Professionals Registry (HPR), Healthcare Facility Registry (HFR), Personal Health Records (PHR), and Unified Health Interface (UHI). ABDM is implemented by the National Health Authority (NHA) under the Ministry of Health and Family Welfare. By 2024, over 60 crore ABHA IDs had been generated. UPSC 2022 official answer: B.

Statements 1 and 3 are correct. The Indian Coast Guard was established under the Coast Guard Act, 1978, with functions including protecting India's maritime interests, assisting customs and immigration, and conducting search and rescue at sea. Statement 2 is incorrect: India's maritime security is a multi-agency responsibility shared by the Indian Navy (deep sea), Indian Coast Guard (coastal waters), Marine Police (up to 12 nautical miles in territorial waters), and Customs authorities — not the Navy alone. The SAGAR (Security and Growth for All in the Region) doctrine, articulated by PM Modi in 2015 in Mauritius, is India's vision for maritime cooperation and security in the Indian Ocean Region.

All three statements are correct. The AFSPA, 1958 gives the armed forces sweeping powers in "Disturbed Areas" — including the power to search without warrant, arrest without warrant, and use lethal force — and provides security personnel immunity from prosecution without prior Central Government sanction, making it deeply controversial from a human rights perspective. The Act was first enacted in 1958 specifically to deal with the Naga insurgency in Nagaland and the Assam Rifles Act context. Suspension of Operations (SoO) agreements — under which insurgent groups halt violent activities in exchange for designated camps and government recognition — form the cornerstone of peace negotiations in Manipur and Nagaland.

Statement 1 is correct: stem cells can be sourced from multiple origins — embryonic stem cells (ESCs) are derived from the inner cell mass of a blastocyst (4-5 day old embryo); adult/somatic stem cells are found in tissues like bone marrow, skin, gut lining, and brain; cord blood stem cells are collected from umbilical cord blood at birth and stored in stem cell banks. Statement 2 is correct: Induced Pluripotent Stem Cells (iPSCs) are adult somatic cells (typically fibroblasts) that have been reprogrammed to an embryonic-like pluripotent state by introducing four transcription factors (Oct4, Sox2, KLF4, c-Myc) — this technology was pioneered by Shinya Yamanaka in 2006 and he shared the 2012 Nobel Prize in Physiology or Medicine with John Gurdon for this discovery. Statement 3 is incorrect: stem cells are not limited to differentiation into blood cells — pluripotent stem cells can differentiate into virtually all cell types (nerve cells, heart muscle cells, liver cells, pancreatic beta cells, etc.); only haematopoietic stem cells are specialised for producing blood cell lineages. Hence 1 and 2 only (option A).

All three statements are correct. PSLV (Polar Satellite Launch Vehicle) is India's workhorse rocket with a distinctive four-stage alternating propulsion configuration: Stage 1 (solid: HTPB propellant, ~138 tonnes) → Stage 2 (liquid: UDMH/N₂O₄ via Vikas engine, ~40 tonnes) → Stage 3 (solid: ~7.6 tonnes) → Stage 4 (liquid twin engines, ~2.5 tonnes); PSLV has an outstanding reliability record of 56+ consecutive successful missions. GSLV Mk-III (LVM3) uses the indigenously developed CE-20 cryogenic upper stage engine, which burns liquid hydrogen (LH₂) and liquid oxygen (LOX) at cryogenic temperatures (below −150°C); India had to develop this technology indigenously after the US and Russia denied transfer of cryogenic technology, and ISRO successfully demonstrated it first in 2014 and operationally from 2017. Satish Dhawan Space Centre (SHAR — Sriharikota High Altitude Range) is located at Sriharikota island in Nellore district of Andhra Pradesh; it is the only spaceport in India and was named after the renowned aerospace engineer and former ISRO chairman Dr. Satish Dhawan. All three statements are accurate.

Diabetes mellitus is a metabolic disorder (non-communicable disease, NCD) characterised by chronic hyperglycaemia (elevated blood glucose) resulting either from insufficient insulin production (Type 1 — autoimmune destruction of pancreatic beta cells) or from insulin resistance combined with inadequate insulin secretion (Type 2 — lifestyle-associated), or from gestational diabetes; it cannot be transmitted from person to person in any manner. Tuberculosis (TB) is a communicable bacterial disease caused by Mycobacterium tuberculosis, transmitted through respiratory aerosols when an infected person coughs or sneezes; it is India's highest-burden infectious disease. Malaria is a communicable protozoan disease (Plasmodium spp.) transmitted by female Anopheles mosquitoes, causing periodic fever, chills, and potentially fatal cerebral malaria. Cholera is a communicable bacterial disease caused by Vibrio cholerae, transmitted through contaminated water and food, causing severe watery diarrhoea and dehydration. NCDs like diabetes, cardiovascular disease, cancer, and chronic respiratory disease account for 63% of India's disease burden; India has the second-largest diabetic population in the world after China. UPSC distinguishes communicable from non-communicable diseases as part of public health policy understanding.

All three statements are correct. Rare Earth Elements (REEs) are a group of 17 metallic elements comprising the 15 lanthanides (lanthanum through lutetium, atomic numbers 57-71) plus scandium (21) and yttrium (39) — they are grouped together because of their similar chemical properties and co-occurrence in nature; despite the name "rare," most REEs are relatively abundant in Earth's crust but difficult to extract economically. China dominates global REE supply — holding approximately 38% of global reserves (44 million tonnes estimated) and producing around 60-70% of global output in 2024 — making REEs a critical geopolitical leverage point, as demonstrated by China's export restrictions in 2010. REEs are critical for clean energy technologies: neodymium and dysprosium are essential for high-performance permanent magnets used in EV motors and direct-drive wind turbine generators (praseodymium, terbium, and samarium also used); without REE magnets, EV and wind turbine performance would be severely diminished. India has significant REE deposits in Kerala, Tamil Nadu, Odisha and Jharkhand but has not yet developed them to scale; diversifying REE supply chains is a major strategic priority for the US, EU, Japan and India to reduce Chinese dependence.

The Central Dogma of Molecular Biology, proposed by Francis Crick in 1958 and elaborated in 1970, describes the fundamental directional flow of genetic information in biological systems: DNA is transcribed into messenger RNA (mRNA) through the action of RNA polymerase in the nucleus, and mRNA is then translated into protein by ribosomes in the cytoplasm using transfer RNA (tRNA) to decode the triplet codons — the sequence is DNA → RNA → Protein. This unidirectional flow ensures that genetic information stored in DNA can be expressed as functional proteins (enzymes, structural proteins, hormones etc.) without the information being able to "flow back" from protein sequence to nucleic acid sequence. Option B (RNA → DNA → Protein) describes reverse transcription, which occurs in retroviruses like HIV using the enzyme reverse transcriptase — this is an exception to the standard dogma, not the dogma itself. Options C and D have no basis in known molecular biology. The Central Dogma is foundational to all of molecular biology, biotechnology, and medicine — understanding it is prerequisite to understanding gene expression, genetic engineering, vaccines, and heredity. UPSC tests this as core biology knowledge.

Statement 1 is incorrect: antibiotics (antibacterial agents) work by interfering with specific structures or metabolic processes unique to bacteria — such as cell wall synthesis (penicillins, cephalosporins), protein synthesis (tetracyclines, macrolides), DNA replication (fluoroquinolones), or cell membrane integrity; viruses are not cells and lack the bacterial targets that antibiotics act upon, so antibiotics are completely ineffective against viral infections like common cold, influenza, COVID-19, dengue, and HIV — prescribing antibiotics for viral infections is a leading driver of antimicrobial resistance. Statement 2 is correct: antibiotic overuse and misuse (including incomplete courses, self-medication, and agricultural overuse in livestock) is the primary mechanism driving Antimicrobial Resistance (AMR), where bacteria evolve or acquire resistance genes; AMR is projected to cause 10 million deaths annually by 2050 if unchecked — India, as the world's largest consumer of antibiotics, has a particular AMR challenge. Statement 3 is correct: Alexander Fleming discovered penicillin in September 1928 at St. Mary's Hospital, London, when he observed that the Penicillium notatum (P. rubens) mould had contaminated his Staphylococcus culture plates and produced a clear zone inhibiting bacterial growth; Fleming, Howard Florey, and Ernst Chain shared the 1945 Nobel Prize in Physiology or Medicine for this discovery and its clinical development. Hence 2 and 3 only (option B).

The correct and widely accepted sequence of disaster management phases is: Mitigation (reducing the likelihood or impact of a hazard) → Preparedness (planning and training before a disaster) → Response (immediate actions during and after disaster) → Recovery (restoration and rehabilitation after the disaster). This cycle is also presented as Prevention/Mitigation → Preparedness → Response → Recovery/Rehabilitation in various frameworks, including India's DM Act. The Sendai Framework emphasises shifting investment towards the earlier phases (mitigation and preparedness) rather than only response.

Statements 1 and 2 are correct. India's landslide-prone zones include the Himalayan states (Uttarakhand, Himachal Pradesh, J&K, and the northeastern states) and the Western and Eastern Ghats regions. According to the Geological Survey of India and NDMA, Uttarakhand, Himachal Pradesh, J&K, and northeast India are highly vulnerable due to steep slopes, seismic activity, and extreme rainfall. The Western Ghats — particularly in Kerala, Karnataka, and Maharashtra — experience frequent rainfall-induced landslides. Statement 3 is incorrect: the Deccan plateau is relatively flat terrain with low landslide hazard; it is not classified as a high landslide risk zone.