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    Question Bank

    Practise UPSC MCQs with explanations

    Attempt real previous-year and practice questions, subject by subject. Every question comes with the correct answer and a detailed explanation — free, no sign-up needed.

    202 questions

    Environment
    2024
    medium

    According to the Environmental Protection Agency (EPA), which one of the following is the largest source of sulphur dioxide emissions?

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    Environment
    2024
    medium

    Consider the following: 1. Cashew 2. Papaya 3. Red sanders How many of the above trees are actually native to India?

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    Environment
    2024
    easy

    Consider the following: 1. Butterflies 2. Fish 3. Frogs How many of the above have poisonous species among them?

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    Environment
    2024
    medium

    Which one of the following trees shows a unique relationship with an insect that has coevolved with it and that is the only insect that can pollinate this tree?

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    Environment
    2024
    medium

    Which one of the following is the correct description of "100 Million Farmers"?

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    Environment
    2024
    medium

    Consider the following statements: 1. Lions do not have a particular breeding season. 2. Unlike most other big cats, cheetahs do not roar. 3. Unlike male lions, male leopards do not proclaim their territory by scent marking. Which of the statements given above are correct?

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    Environment
    2024
    medium

    Consider the following pairs: 1. Brazil — Indri 2. Indonesia — Elk 3. Madagascar — Bonobo (Country — Animal found in its natural habitat) How many of the pairs given above are correctly matched?

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    Environment
    2024
    medium

    Consider the following statements: Statement-I: Many chewing gums found in the market are considered a source of environmental pollution. Statement-II: Many chewing gums contain plastic as gum base. Which one of the following is correct in respect of the above statements?

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    Environment
    2024
    medium

    Consider the following statements: Statement-I: The Indian Flying Fox is placed under the "vermin" category in the Wild Life (Protection) Act, 1972. Statement-II: The Indian Flying Fox feeds on the blood of other animals. Which one of the following is correct in respect of the above statements?

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    Environment
    2024
    hard

    Consider the following: 1. Carabid beetles 2. Centipedes 3. Flies 4. Termites 5. Wasps Parasitoid species are found in how many of the above kind of organisms?

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    Environment
    2024
    medium

    With reference to perfluoroalkyl and polyfluoroalkyl substances (PFAS) that are used in making many consumer products, consider the following statements: 1. PFAS are found to be widespread in drinking water, food and food packaging materials. 2. PFAS are not easily degraded in the environment. 3. Persistent exposure to PFAS can lead to bioaccumulation in animal bodies. Which of the statements given above are correct?

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    Environment
    2024
    medium

    One of the following regions has the world's largest tropical peatland, which holds about three years worth of global carbon emissions from fossil fuels; and the possible destruction of which can exert detrimental effect on the global climate. Which one of the following denotes that region?

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    Environment
    2018
    hard

    With reference to organic farming in India, consider the following statements: 1. 'The National Programme for Organic Production' (NPOP) is operated under the guidelines and directions of the Union Ministry of Rural Development. 2. 'The Agricultural and Processed Food Products Export Development Authority' (APEDA) functions as the Secretariat for the implementation of NPOP. 3. Sikkim has become India's first fully organic State. Which of the statements given above is/are correct?

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    Environment
    2018
    medium

    Consider the following: 1. Birds 2. Dust blowing 3. Rain 4. Wind blowing Which of the above spread plant diseases?

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    Environment
    2018
    hard

    Consider the following statements: 1. The definition of "Critical Wildlife Habitat" is incorporated in the Forest Rights Act, 2006. 2. For the first time in India, Baigas have been given Habitat Rights. 3. Union Ministry of Environment, Forest and Climate Change officially decides and declares Habitat Rights for Primitive and Vulnerable Tribal Groups in any part of India. Which of the statements given above is/are correct?

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    Environment
    2018
    medium

    In which one of the following States is Pakhui Wildlife Sanctuary located?

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    Environment
    2018
    medium

    "Momentum for Change: Climate Neutral Now" is an initiative launched by

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    Environment
    2018
    hard

    Consider the following statements: 1. Most of the world's coral reefs are in tropical waters. 2. More than one-third of the world's coral reefs are located in the territories of Australia, Indonesia and Philippines. 3. Coral reefs host far more number of animal phyla than those hosted by tropical rainforests. Which of the statements given above is/are correct?

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    Environment
    2018
    medium

    Why is a plant called Prosopis juliflora often mentioned in news?

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    Environment
    2018
    hard

    The Partnership for Action on Green Economy (PAGE), a UN mechanism to assist countries transition towards greener and more inclusive economies, emerged at

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