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Environment: all 406 questions.
UPSC Prelims 1979–2026, chapter by chapter, newest first. Open a question to see its answer, the idea behind it and the trap.
Nature’s Machinery (85)
- 2026Mangroves: Which of the following best explain(s) the rationale for protecting mangrove…
- 2026Lake Turkana: Which of the following statements with reference to Lake Turkana is/are correct?
- 2025Oxygen: With reference to the planet Earth, consider the following statements:
- 2025Atmosphere: Consider the following statements: Which of the statements given above are correct?
- 2024Climate types: Consider the following description: What is this type of climate?
- 2023Rainforest soils: Consider the following statements: Which one of the following is correct in…
- 2023Deciduous trees: Consider the following trees: How many of the above are deciduous trees?
- 2022Nitrogen fixation: Which of the following are nitrogen-fixing plants?
- 2022Miyawaki method: The "Miyawaki method" is well known for the:
- 2022Wetlands: "If rainforests and tropical forests are the lungs of the Earth, then surely…
- 2021Phosphorus cycle: In case of which one of the following biogeochemical cycles, the weathering…
- 2021Savannah: The vegetation of savannah consists of grassland with scattered small trees, but…
- 2021Rainforest: "Leaf litter decomposes faster than in any other biome and as a result the soil…
- 2019Geoengineering: In the context of which of the following do some scientists suggest the use of…
- 2019Alpine park: Which one of the following National Parks lies completely in the temperate alpine…
- 2019Forest cover: Consider the following States: 1. Chhattisgarh 2. Madhya Pradesh 3. Maharashtra…
- 2016Red Sanders: With reference to 'Red Sanders', sometimes seen in the news, consider the…
- 2015Living root bridges: In a particular region in India, the local people train the roots of…
- 2015Ecosystem: Which one of the following is the best description of the term 'ecosystem'?
- 2015Forest mix: Which one of the following regions of India has a combination of mangrove forest,…
- 2015Namdapha: Which one of the following National Parks has a climate that varies from tropical to…
- 2015Wet evergreen forests: Consider the following States:
- 2015Teak: In India, in which one of the following types of forests is teak a dominant tree species?
- 2015Equatorial climate: "Each day is more or less the same, the morning is clear and bright with a…
- 2014Carbon cycle: Which of the following adds/add carbon dioxide to the carbon cycle on the planet…
- 2014Monsoon: The seasonal reversal of winds is the typical characteristic of
- 2014Himalayan plants: If you travel through the Himalayas, you are likely to see which of the…
- 2013Food chain: With reference to food chains in ecosystems, consider the following statements:…
- 2013Niche: Which one of the following terms describes not only the physical space occupied by an…
- 2013Succession: In the grasslands, trees do not replace the grasses as a part of an ecological…
- 2013Productivity: Which one of the following is the correct sequence of ecosystems in the order of…
- 2013Desert plants: Which of the following leaf modifications occurs/occur in desert areas to…
- 2013Equatorial forests: Which of the following is/are unique characteristic/characteristics of…
- 2013Steppe: "Climate is extreme, rainfall is scanty and the people used to be nomadic herders."…
- 2012Biodiversity threats: Which of the following can be threats to the biodiversity of a…
- 2012Arunachal: A particular State in India has the following characteristics: I. It is located on…
- 2012Savannah climate: Which one of the following is the characteristic climate of the Tropical…
- 2011Ecosystem services: Biodiversity forms the basis for human existence in the following ways:…
- 2011Hotspot criteria: Three of the following criteria have contributed to the recognition of…
- 2011Diversity gradients: Consider the following statements: Which of the statements given above…
- 2011Rainforest regeneration: If a tropical rainforest is removed, it does not regenerate quickly…
- 2011Himalayan diversity: The Himalayan Range is very rich in species diversity. Which one among…
- 2010Biomagnification: A pesticide which is a chlorinated hydrocarbon is sprayed on a food crop.…
- 2010Hotspots in India: Consider the following statements: Which of the statements given above…
- 2010World hotspots: Consider the following regions: Which of the above is/are Biodiversity…
- 2010Reading climate data: A geographic area with an altitude of 400 metres has the following…
- 2010Mediterranean: A geographic region has the following distinct characteristics: 1. Warm and dry…
- 2010Land use: The approximate representation of land use classification in India is
- 2010Forest types: In India, which type of forest among the following occupies the largest area?
- 2008Himalayan trees: Which one of the following is not essentially a species of the Himalayan…
- 2005Forest statistics: Consider the following statements: Which of the statements given above…
- 2004Forest cover: Amongst the following Indian States which one has the minimum total forest cover?
- 2003World forests: Which one among the following covers the highest percentage of forest area in…
- 2003Rainforest soils: Assertion (A): Unlike temperate forests, tropical rain forests, if cleared,…
- 2002Climate types: Consider the following statements: Which of these statements are correct?
- 2002Thorn forests: Open stunted forests with bushes and having long roots and sharp thorns or…
- 2002Mangroves: Match List-I (Mangrove) with List-II (State): A. Achra Ratnagiri · B. Coondapur ·…
- 2002Albedo: Consider the following ecosystems: 1. Taiga 2. Tropical evergreen 3. Tropical…
- 2001Epiphytes: Epiphytes are plants, which depend on other plants for
- 2001Reading climate data: The temperature and rainfall of a meteorological station are given…
- 1999Reading climate data: Consider the following temperature and rainfall data: [Temperature data:…
- 1999Forest target: The minimum land area recommended for forest cover to maintain proper…
- 1999Timber by country: Match List I (Timber) with List II (Country): A. Cedar · B. Douglas Fir ·…
- 1997Biomagnification: Which one of the following organisms is likely to show the highest…
- 1995Agent Orange: The final Agent Orange raid in Vietnam took place in 1970. The apparent toxic…
- 1994Biodiversity: The greatest diversity of animal and plant species occurs in
- 1993Global biodiversity: Which one of the following does provide the best estimate of world's…
- 1993Biodiversity threats: Which of the following strongly threatens biodiversity?
- 1992Chlorophyll: Chlorophyll is a naturally occurring chelate compound in which central metal is
- 1992Nitrogen fixation: Which one of the following plants can fix nitrogen from air?
- 1991Matching: Match List I with List II. List I: A. Deforestation · B. Cellular structure · C.…
- 1990Bioremediation: Consider the following statements regarding 'bioremediation'. It involves the…
- 1988Nitrogen fixation: The type of crop which is able to fix nitrogen from air is known as
- 1987Nitrogen uptake: Plants take nitrogen in the form of
- 1987Photosynthesis: Photosynthesis generally occurs in which portions of the plant?
- 1987DDT: Why DDT is banned in western countries?
- 1986Photosynthesis: The final product of photosynthesis is
- 1985Herbicide: Which of the following is a weed killer?
- 1984Insecticide: Which of the following is an insecticide?
- 1984Silent Valley: Silent Valley Project has been abandoned for
- 1982Chlorophyll: Chlorophyll is a/an
- 1981Diversity gradient: When a person moves from poles to the equator, the population of plants…
- 1979Photosynthesis in water: Green plants in the sea are useful for the respiration of fish because
- 1979Nitrogen fixation: Which of the following crops helps in nitrogen fixation?
- 1979Deforestation: The cutting of forests leads to
Species Watch (126)
- 2026India’s only ape: With respect to the Western Hoolock Gibbons, which of the following…
- 2026Foxtail orchid: Consider the following statements about Rhynchostylis retusa (Foxtail orchid):…
- 2026Amur falcons: Which of the following statements with regard to the arrival of Amur Falcons at…
- 2025Endemic species: Regarding Peacock tarantula (Gooty tarantula), consider the following…
- 2025Plant forms: Consider the following pairs: Plant — Description. How many of the above pairs…
- 2024Animal behaviour: Which of the following organisms perform waggle dance for others of their…
- 2024Where animals live: Consider the following pairs: Country — Animal found in its natural habitat
- 2024Indian squirrels: Consider the following statements regarding the Indian squirrels: How many…
- 2024Mushrooms: Consider the following statements: How many of the above statements are correct?
- 2024Nocturnal animals: Consider the following fauna: How many of the above are generally nocturnal…
- 2024Indian flying fox: Consider the following statements: Which one of the following is correct in…
- 2024Parasitoids: Consider the following: Parasitoid species are found in how many of the above…
- 2024Native trees: Consider the following: How many of the above trees are actually native to India?
- 2024Poisonous animals: Consider the following: How many of the above have poisonous species among…
- 2024Fig and fig wasp: Which one of the following shows a unique relationship with an insect that…
- 2024Big cats: Consider the following statements: Which of the statements given above are correct?
- 2024Insects: The organisms "Cicada, Froghopper and Pond skater" are:
- 2023Tool use in animals: Which one of the following makes a tool with a stick to scrap insects…
- 2023Aquaculture biofilters: With reference to the role of biofilters in Recirculating Aquaculture…
- 2023Extremophiles: Consider the following statements: How many of the above statements are correct?
- 2023Marsupials: Consider the following statements: Which one of the following is correct in…
- 2022Fungus farmers: Certain species of which one of the following organisms are well known as…
- 2022Birds: Which of the following is not a bird?
- 2022Gucchi: With reference to "Gucchi" sometimes mentioned in the news, consider the following…
- 2021Symbiosis: Which of the following have species that can establish symbiotic relationship with…
- 2021Detritivores: Which of the following are detritivores? Select the correct answer using the…
- 2021Ocean producers: Consider the following kinds of organisms: Which of the above are primary…
- 2021Life without soil: In the nature, which of the following is/are most likely to be found…
- 2021Mosquito repellent: Which one of the following is used in preparing a natural mosquito…
- 2021Rolling up: Consider the following animals: To reduce the chance of being captured by…
- 2021Filter feeders: Which one of the following is a filter feeder?
- 2020Indian elephants: With reference to Indian elephants, consider the following statements: Which…
- 2020Birds: With reference to India's biodiversity, Ceylon frogmouth, Coppersmith barbet,…
- 2019Where they live: Consider the following pairs: Wildlife: Naturally found in Which of the pairs…
- 2019Found only in India: Consider the following statements: Which of the statements given above…
- 2019Himalayan nettle: Recently, there was a growing awareness in our country about the importance…
- 2016Kharai camel: What is/are unique about 'Kharai camel' a breed found in India? Select the…
- 2016Great Indian Hornbill: In which of the following regions of India are you most likely to come…
- 2016New banana species: Recently, our scientists have discovered a new and distinct species of…
- 2016Butterfly decline: Due to some reasons, if there is a huge fall in the population of species…
- 2015National aquatic animal: Which one of the following is the national aquatic animal of India?
- 2015Dugong: With reference to 'dugong', mammal found in India, which of the following statements…
- 2014Birds with cattle: If you walk through countryside, you are likely to see some birds stalking…
- 2014River dolphin decline: Other than poaching, what are the possible reasons for the decline in…
- 2013Endangered fauna: Consider the following fauna of India: Which of the above is/are endangered?
- 2013Found in India: Consider the following: Which of the above are naturally found in India?
- 2013Lion-tailed macaque: In which of the following States is lion-tailed macaque found in its…
- 2013Decomposers: With reference to the food chains in ecosystems, which of the following kinds of…
- 2012Oryx and chiru: What is the difference between the antelopes Oryx and Chiru?
- 2012Found in India: Consider the following: Which of the above are naturally found in India?
- 2012Endangered species: Which one of the following groups of animals belongs to the category of…
- 2012Seabuckthorn: What is the importance of developing Seabuckthorn plantation?
- 2012Phytoplankton: What would happen if phytoplankton of an ocean is completely destroyed for some…
- 2011Indian wild ass: A sandy and saline area is the natural habitat of an Indian animal species.…
- 2011King cobra: King Cobra is the only snake that makes its own nest. Why does it make its nest?
- 2011Taxus (yew): Consider the following statements: 1. The Taxus tree is naturally found in the…
- 2011Insectivorous plants: Some species of plants are insectivorous. Why?
- 2011Evolution sequence: From the point of view of the evolution of living organisms, which one of…
- 2009Dugong: The marine animal called dugong which is vulnerable to extinction is:
- 2009Panda: The Panda belongs to the same family as that of
- 2009Flying fox: In the context of Indian wildlife, the flying fox is a
- 2008Where they live: Consider the following statements: Which of the statements given above is/are…
- 2008Mosquito control: The release of which one of the following into ponds and wells helps in…
- 2008Apes: Among the following, which one is not an ape?
- 2008Egg-laying mammal: Among the following, which one lays eggs and does not produce young ones…
- 2008Insectivorous plant: Which one of the following is an insectivorous plant?
- 2008Snake-eating snake: For which one of the following snakes is the diet mainly composed of other…
- 2008Sexual cannibalism: In which one of the following kinds of organisms is the phenomenon found…
- 2007Red panda and slow loris: Consider the following statements: Which of the statements given…
- 2007Largest reef: The Largest coral reef in the world is found near the coast of which one of the…
- 2007Pitcher plant: Which one of the following parts of the pitcher plants becomes modified into a…
- 2005Reproduction: Assertion (A): Amoeba reproduces by fission. Reason (R): All unicellular…
- 2004Pangolins and gibbons: Consider the following statements: Which of the statements given above…
- 2003Octopus: Octopus is
- 2003Algae and chameleons: Consider the following statements: Which of these statements is/are…
- 2002Olive Ridley: The sea coast of which one of the following states has become famous as a…
- 2002Scientific names: Match List-I (Indian wildlife species) with List-II (Scientific name): A.…
- 2002Animal facts: Which one of the following statements is not correct?
- 2001Worms: Consider the following statements: Which of these are correct?
- 2001Marsupials: A class of animals known as Marsupials is a characteristic feature of
- 2000Keystone species: Within biological communities, some species are important in determining the…
- 1999First marine sanctuary: The first marine sanctuary in India, having within its bounds coral…
- 1999Neem: Neem tree has acquired industrial importance as a source of
- 1999Asian elephant: “India has the largest population of the Asian X.” Which animal is X?
- 1998Dodo and tambalacoque: A tree species in Mauritius failed to reproduce because of the…
- 1998Red tides: Estuaries possess distinct blooms of excessive growth of a pigmented…
- 1995Night-flowering: Most of the desert plants bloom during night time because
- 1995King cobra: The only snake that builds a nest is:
- 1994First bird: The first bird is believed to have appeared on the surface of the earth
- 1994Cold-water fish: Which of the following fish are bred exclusively in the cold regions of…
- 1994India’s ape: The only anthropoid ape to be found in India is the
- 1994Water storage: Which one of the following animals stores water in the intestine?
- 1994Biofertilisers: Which of the following is/are used as bio fertilizers?
- 1993Camel’s hump: Camel uses its hump for
- 1993Matching: Match List I (Characteristics) with List II (Animal): I. Wingless insect · II.…
- 1992Echolocation: The bats are able to fly in dark since their wings produce
- 1991Venomous snakes: The most poisonous snakes found in India are
- 1990Water hyacinth: Which one of the following plants is effective in reducing water pollution and…
- 1990Water loss: When compared to the mammals, birds are less sensitive to temporary deprivation of…
- 1990Mycorrhiza: Mycorrhiza is a symbiotic association between
- 1989Bats: Which of the following is true about the Bats?
- 1989Dinosaurs: Dinosaur is
- 1989Mosquito repellent: The chief ingredient of the mosquito repellent cream is derived from
- 1989Guinea pig: Guinea pigs used in medical research are
- 1988Water hyacinth: Water hyacinth is related to
- 1988Corals: Corals is/are
- 1988Earthworms: Assertion (A): Earthworms are useful to man. Reason (R): Earthworms help in…
- 1987Indian pigs: India's indigenous pigs generally give birth to young ones at a time?
- 1986Wrong pair: Which of the following pairs is incorrect?
- 1985Dinosaurs and man: Which of the following statements about "Dinosaurs" is/are correct?
- 1984Insect mouthparts: What is the common feature in insects like ant and cockroach?
- 1984Lichens: Lichens is an association of two types of organisms. They are
- 1984Grouping animals: Which pair is correct?
- 1984Parasites: Which is not a parasite?
- 1984Life spans: Arrange the following in descending order of their life spans: A. Elephant B.…
- 1982Pearls: Pearls are formed inside
- 1982Social insects: Honeybees are called social insects because
- 1982Plankton: Plankton refers to
- 1981Food chain: There are mice in the field which act as prey to snakes. Hawks eat the snakes.…
- 1980Woodpecker: Which bird has a chisel like bill?
- 1980Colour change: Reptile that is well known for its intense colour change is
- 1980Tallest animal: Tallest four-legged animal is
- 1980Great Indian Bustard: Bustard King is found in
- 1979Asiatic lion: The extinctive type of lions are mostly found in
- 1979Australian animals: You are asked to import ostrich, platypus, and koala bear. Which country…
- 1979Great Indian Bustard: The great Indian Bustard is found in
Wild Places (37)
- 2026Tiger reserves: With reference to Madhav National Park, which of the following statements…
- 2020Tiger reserves: Among the following Tiger Reserves, which one has the largest area under…
- 2020Rivers × protected areas: Which of the following Protected Areas are located in the Cauvery…
- 2020Hard-ground barasingha: Which one of the following protected areas is well-known for the…
- 2020Musk deer: Which of the following are the most likely places to find the musk deer in its…
- 2020Desert National Park: With reference to India’s Desert National Park, which of the following…
- 2019Agasthyamala BR: Which of the following are in Agasthyamala Biosphere Reserve?
- 2018Pakhui (Pakke): In which one of the following States is Pakhui Wildlife Sanctuary located?
- 2017Lion translocation: Recently there was a proposal to translocate some of the lions from their…
- 2017Gharials: If you want to see gharials in their natural habitat, which one of the following is…
- 2017Eastern–Western Ghats link: From the ecological point of view, which one of the following…
- 2015Floating park: Which of the following National Parks is unique in being a swamp with floating…
- 2014Eco-Sensitive Zones: With reference to ‘Eco-Sensitive Zones’, which of the following…
- 2014Wetlands and rivers: Consider the following pairs: Wetlands — Confluence of rivers. Which of…
- 2014Biosphere reserves: The most important strategy for the conservation of biodiversity together…
- 2014North-East pairs: Consider the following pairs: Which of the above pairs is/are correctly…
- 2012Rights inside protected areas: In which one among the following categories of protected areas…
- 2012Tiger reserves: Consider the following protected areas: Which of the above are declared Tiger…
- 2012Wetland statistics: With reference to the wetlands of India, consider the following…
- 2011In-situ conservation: Which one of the following is not a site for in-situ method of…
- 2011Ramsar: wise use: India is a party to the Ramsar Convention and has declared many areas as…
- 2010Protected area types: Consider the following statements: Which of the statements given above…
- 2010Protected area specialities: Consider the following pairs: Protected area — Well-known for.…
- 2008UNESCO biosphere reserves: Out of all the Biosphere Reserves in India, four have been…
- 2008National parks count: Which one among the following has the maximum number of National Parks?
- 2007Top Slip: Which one of the following is also known as Top Slip?
- 2007Bastar: Which one of the following is located in the Bastar region?
- 2006Parks and towns: Match List I (National Park/Wildlife Sanctuary) with List II (Nearby Town):…
- 2005Biosphere reserves: Which one of the following is not a Biosphere Reserve?
- 2005Silent Valley: Consider the following statements: Which of the statements given above is/are…
- 2005Sanctuaries and States: Match List I (National Park/Wildlife Sanctuary) with List II (State):…
- 2001Environment institutions: Consider the following statements regarding environmental issues of…
- 1991Project Tiger: Of the various wildlife and forest observation schemes undertaken with world…
- 1990Park locations: Which one of the following pairs is correctly matched?
- 1989Bandipur: Bandipur is known for
- 1985Park locations: Which of the following parks/sanctuaries is/are correctly matched with their…
- 1980Silent Valley: Silent Valley Project in Kerala was dropped because
Rules for the Planet (81)
- 2026Blue Transformation: At the United Nations Ocean Conference (UNOC) held in June, 2025 in…
- 2025Paris Article 6: Consider the following statements:
- 2025COP28 health: Consider the following statements: Statement I: At the 28th United Nations…
- 2025Nature finance: Which one of the following launched the ‘Nature Solutions Finance Hub for Asia…
- 2025Nature Restoration Law: Which organization has enacted the Nature Restoration Law (NRL) to…
- 2024EU Net-Zero Industry Act: Consider the following statements: Which one of the following is…
- 2023Community reserves: Consider the following statements: Once the Central Government notifies an…
- 2023Biodiversity Management Committees: Consider the following statements: Which of the statements…
- 2023Invasive Species Specialist Group: 'Invasive Species Specialist Group' (that develops Global…
- 2023Carbon markets: Consider the following statements: Which one of the following is correct in…
- 2022Green claims: Which one of the following best describes the term “greenwashing”?
- 2022Climate Action Tracker: "Climate Action Tracker" which monitors the emission reduction pledges…
- 2022Wildlife law: With reference to Indian laws about wildlife protection, consider the following…
- 2022CGWA: Which one of the following has been constituted under the Environment (Protection) Act,…
- 2021WaterCredit: With reference to 'Water Credit', consider the following statements: Which of the…
- 2021Common Carbon Metric: The 'Common Carbon Metric', supported by UNEP, has been developed for
- 2021New York Declaration on Forests: With reference to the 'New York Declaration on Forests',…
- 2021Forest Rights Act: At the national level, which ministry is the nodal agency to ensure…
- 2020Schedule VI: If a particular plant species is placed under Schedule VI of The Wildlife…
- 2020Biofuel feedstocks: According to India's National Policy on Biofuels, which of the following…
- 2020Groundwater: Consider the following statements: Which of the statements given above is/are…
- 2020Social cost of carbon: Which one of the following statements best describes the term 'Social…
- 2020Climate terms: Consider the following pairs: Terms sometimes seen in the news — Their origin.…
- 2019Wetland rules: Consider the following statements: Which of the statements given above is/are…
- 2019Environment Protection Act: Consider the following statements: The Environment Protection Act,…
- 2019Solid Waste Rules 2016: As per the Solid Waste Management Rules, 2016 in India, which one of…
- 2019Extended producer responsibility: In India, 'extended producer responsibility' was introduced…
- 2018GACSA: With reference to the 'Global Alliance for Climate-Smart Agriculture (GACSA)', which of…
- 2018PAGE: The Partnership for Action on Green Economy (PAGE), a UN mechanism to assist countries…
- 2018Climate Neutral Now: "Momentum for Change: Climate Neutral Now" is an initiative launched by
- 2018Habitat rights: Consider the following statements: Which of the statements given above is/are…
- 2018Solar power: With reference to solar power production in India, consider the following…
- 2017CCAC: Consider the following statements: Which of the statements given above is/are correct?
- 2017TRAFFIC: Consider the following statements in respect to Trade Related Analysis of Fauna and…
- 2017Schedule I: In India, if a species of tortoise is declared protected under Schedule I of the…
- 2017Protected animals: According to the Wildlife (Protection) Act, 1972, which of the following…
- 2017M-STrIPES: The term 'M-STrIPES' is sometimes seen in the news in the context of
- 2017Global Climate Change Alliance: With reference to 'Global Climate Change Alliance', which of…
- 2016Western Ghats reports: ‘Gadgil Committee Report’ and ‘Kasturirangan Committee Report’,…
- 2016TEEB: With reference to an initiative called 'The Economics of Ecosystems and Biodiversity…
- 2016REDD+: Which of the following statements is/are correct? Proper design and effective…
- 2016Green India Mission: Which of the following best describes/describe the aim of 'Green India…
- 2016BEE star label: On which of the following can you find the Bureau of Energy Efficiency Star…
- 2016INDCs: The term 'Intended Nationally Determined Contributions' is sometimes seen in the news…
- 2016UNCCD: What is/are the importance/importances of the 'United Nations Convention to Combat…
- 2016GHG Protocol: What is 'Greenhouse Gas Protocol'?
- 2016Agenda 21: With reference to 'Agenda 21', sometimes seen in the news, consider the following…
- 2016International Solar Alliance: Consider the following statements: Which of the statements given…
- 2016Paris Agreement: With reference to the Agreement at the UNFCCC Meeting in Paris in 2015, which…
- 2015BirdLife International: With reference to an organization known as 'Birdlife International',…
- 2015IUCN and CITES: With reference to the International Union for Conservation of Nature and…
- 2015GEAC: The Genetic Engineering Appraisal Committee is constituted under the
- 2015IREDA: With reference to the Indian Renewable Energy Development Agency Limited (IREDA), which…
- 2015Ozone-depleting substances: Which one of the following is associated with the issue of control…
- 2015Green Climate Fund: Which of the following statements regarding 'Green Climate Fund' is/are…
- 2015Forest Carbon Partnership Facility: With reference to 'Forest Carbon Partnership Facility',…
- 2015BioCarbon Fund: 'BioCarbon Fund Initiative for Sustainable Forest Landscapes' is managed by the
- 2014Ramsar · Montreux Record: If a wetland of international importance is brought under the…
- 2014Wetlands International: With reference to a conservation organization called 'Wetlands…
- 2014BNHS: With reference to Bombay Natural History Society (BNHS), consider the following…
- 2014Statutory bodies: Consider the following statements: Which of the statements given above…
- 2014Treaties and biodiversity: Consider the following international agreements: Which of the above…
- 2014Earth Hour: Consider the following statements regarding 'Earth Hour': Which of the statements…
- 2014Global Environment Facility: With reference to ‘Global Environment Facility’, which of the…
- 2013Forest Rights Act: Under the Scheduled Tribes and Other Traditional Forest Dwellers…
- 2012Vulture crash: Vultures which used to be very common in Indian countryside some years ago are…
- 2012National Biodiversity Authority: How does National Biodiversity Authority (NBA) help in…
- 2012National Water Mission: If National Water Mission is properly and completely implemented, how…
- 2012Ecosystem services: The Millennium Ecosystem Assessment describes the following major…
- 2011Red Data Book: The "Red Data Books" published by the International Union for Conservation of…
- 2011Laws and biodiversity: With reference to India, consider the following Central Acts: Which of…
- 2011Carbon credits: Regarding "carbon credits", which one of the following statements is not…
- 2010UNFCCC: The United Nations Framework Convention on Climate Change (UNFCCC) is an international…
- 2009Cartagena Protocol: Which one of the following Union Ministries implements the Cartagena…
- 2009Clean Development Mechanism: In the context of CO₂ emission and Global Warming, what is the…
- 2009Carbon credits: The concept of carbon credit originated from which one of the following?
- 2008Biodiesel Mission: Which one of the following Union Ministries is implementing the Biodiesel…
- 2008CDM: Consider the following statements: Which of the statements given above is/are correct?
- 2006Carbon tax: Which one of the following countries is the first country in the world to propose…
- 2005Biosafety Protocol: Which one of the following statements is correct?
- 1999Environmental laws: Which one of the following legislations does not deal with the protection…
Pollution Files (45)
- 2025Pollution clean-up: Consider the following statements:
- 2025Circular economy: Consider the following statements: Statement I: Circular economy reduces the…
- 2024Hidden plastics: Consider the following statements:
- 2024Sulphur dioxide: According to the Environmental Protection Agency (EPA), which one of the…
- 2023Mercury: Consider the following statements regarding mercury pollution: How many of the above…
- 2022Acid rain: Consider the following: Excess of which of the above in the environment is/are…
- 2022WHO air quality guidelines: In the context of WHO Air Quality Guidelines, consider the…
- 2021Magnetite particles: Magnetite particles, suspected to cause neurodegenerative problems, are…
- 2021Copper smelting: Why is there a concern about copper smelting plants? Select the correct…
- 2021Furnace oil: With reference to furnace oil, consider the following statements: Which of the…
- 2020Benzene: Which of the following are the reasons/factors for exposure to benzene pollution?…
- 2020Steel slag: Steel slag can be the material for which of the following? Select the correct…
- 2020Coal ash: Consider the following statements: Which of the statements given above is/are…
- 2019Microplastics: Why is there a great concern about the ‘microbeads’ that are released into…
- 2019Pyrolysis and plasma gasification: In the context of which one of the following are the terms…
- 2019Banned pesticides: In India, the use of carbofuran, methyl parathion, phorate and triazophos…
- 2019Crop burning: Consider the following: Which of the above are released into atmosphere due to…
- 2019Reactive nitrogen: Consider the following statements: Which of the statements given above…
- 2019H-CNG: In the context of proposals to the use of hydrogen-enriched CNG (H-CNG) as fuel for…
- 2017Water pollution: Biological Oxygen Demand (BOD) is a standard criterion for
- 2017Bioremediation: In the context of solving pollution problems, what is/are the…
- 2016Air Quality Index: In the cities of our country, which among the following atmospheric gases…
- 2014Steel industry pollutants: Which of the following are some important pollutants released by…
- 2013Acid rain: Acid rain is caused by the pollution of environment by
- 2013Photochemical smog: Photochemical smog is a resultant of the reaction among
- 2013Drinking water contaminants: Which of the following can be found as pollutants in the drinking…
- 2011Harmful algal blooms: There is a concern over the increase in harmful algal blooms in the…
- 2011Where CO₂ goes: Human activities in the recent past have caused the increased concentration of…
- 2010Carbon monoxide: Excessive release of the pollutant carbon monoxide (CO) into the air may…
- 2008Methane sources: Consider the following: Which of the above are sources of methane, a major…
- 2003Photochemical smog: Which one of the following is produced during the formation of…
- 1998River pollution: The water pollution in river is measured by the dissolved amount of
- 1995Cleanest fuel: Which one of the following fuels causes minimum environmental pollution?
- 1994Acid rain: In recent years, there has been some concern over the threat posed by the Mathura…
- 1994Water pollution: If water pollution continues at its present rate, it will eventually
- 1993UV wavelength: When there is depletion of ozone in the stratosphere, the wavelength of…
- 1993Acid precipitation: Acid precipitation is now regarded as a serious problem in some European…
- 1993Chemical disasters: Given below is a diary of disasters involving hazardous chemicals. Which…
- 1992Ozone depletion: Which one of the following chemicals is responsible for the depletion of…
- 1988Acid rain: Acid rain is caused by pollution of environment by
- 1987Ozone layer: Ozone layer of atmosphere absorbs
- 1986Ozone layer: Which of the following statements about ozone layer is correct?
- 1984Taj Mahal: Taj Mahal is reported to be in danger because of
- 1982Ozone layer: Ozone present in the ozone layer of the atmosphere is important because
- 1979Common pollutant: The most common substance responsible for pollution is
Warming World (32)
- 2026Green hydrogen: Which of the following statements with regard to Green Hydrogen is/are correct?
- 2026REDD+ in India: Which one of the following is the first Plan Vivo certified Reducing Emissions…
- 2026India’s climate strategy: Consider the following statements with reference to India’s response…
- 2026Rainfed Area Development: Which among the following is/are the objective(s) of the Rainfed…
- 2026Sustainability bond: A bond whose proceeds are used only to finance or refinance a combination…
- 2025Extreme heat: The World Bank warned that India could become one of the first places where…
- 2025Cement CO₂: Consider the following statements: Statement I: Studies indicate that carbon…
- 2025Direct Air Capture: With reference to ‘Direct Air Capture’, an emerging technology, which of…
- 2025India’s CO₂: Consider the following statements: Which of the statements given above is/are…
- 2024PFAS: With reference to perfluoroalkyl and polyfluoroalkyl substances (PFAS) that are used in…
- 2023Carbon removal: Consider the following activities: How many of the above activities are often…
- 2022Coral restoration: “Biorock technology” is talked about in which one of the following…
- 2022PET: With reference to polyethylene terephthalate, the use of which is so widespread in our…
- 2021Carbon sinks: What is blue carbon?
- 2021Tree City of the World: Statement 1: The United Nations Capital Development Fund (UNCDF) and…
- 2021R2 Code: 'R2 Code of Practices' constitutes a tool available for promoting the adoption of
- 2020Green rural roads: In rural road construction, the use of which of the following is preferred…
- 2019Methane: Which of the following statements are correct about the deposits of ‘methane hydrate’?
- 2018Sixth mass extinction: The term "sixth mass extinction/sixth extinction" is often mentioned in…
- 2018Carbon fertilisation: Which of the following statements best describes "carbon fertilization"?
- 2017Carbon storage sites: In the context of mitigating the impending global warming due to…
- 2017Algal biofuels: It is possible to produce algae-based biofuels, but what is/are the likely…
- 2016SDGs: Consider the following statements: Which of the statements given above is/are correct?
- 2014Beyond 3 °C: The scientific view is that the increase in global temperature should not exceed…
- 2012Uses of CFCs: Consider the following statements: Chlorofluorocarbons, known as ozone-depleting…
- 2012Greenhouse effect: The increasing amount of carbon dioxide in the air is slowly raising the…
- 2012Soil carbon: Consider the following agricultural practices: In the context of global climate…
- 2011Antarctic ozone hole: The formation of ozone hole in the Antarctic region has been a cause of…
- 2010Rice and warming: Due to their extensive rice cultivation, some regions may be contributing to…
- 2010Warming agents: Consider the following which can be found in the ambient atmosphere: Which of…
- 2010India’s limits: What are the possible limitations of India in mitigating global warming at…
- 2001Environment days: Match List I with List II: i. World Environment Day · ii. World Forestry Day…