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UPSC PYQ: Previous Year Questions

Browse 1,760 UPSC Civil Services Examination previous year questions from 2016–2026, covering both Prelims and Mains papers in one place. Every question is labelled with its stage and opens a dedicated page with its answer and explanation.

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1,760
Years covered
2016–2026
Subjects
154
With answers
1,760

Latest UPSC Prelims and Mains Previous Year Questions

241–260 of 320
  2. Q242 Prelims 2024 Prelims GS

    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?

    1. Both Statement-I and Statement-II are correct and Statement-II explains Statement-I.
    2. Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I.
    3. Statement-I is correct, but Statement-II is incorrect.
    4. Statement-I is incorrect, but Statement-II is correct.
    Chewing gum wasteEnvironmentEnvironmental pollution
    View answer & explanation
  4. Q244 Prelims 2024 Prelims GS

    Consider the following statements regarding World Toilet Organization:
    1. It is one of the agencies of the United Nations.
    2. World Toilet Summit, World Toilet Day and World Toilet College are the initiatives of this organization, to inspire action to tackle the global sanitation crisis.
    3. The main focus of its function is to grant funds to the least developed countries and developing countries to achieve the end of open defecation.
    Which of the statements given above is/are correct?

    1. 2 only
    2. 3 only
    3. 1 and 2
    4. 2 and 3
    EnvironmentGlobal sanitation initiativesSanitation and public health
    View answer & explanation
  6. Q246 Prelims 2024 Prelims GS

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

    1. It is a platform for accelerating the transition towards food and water systems that are net-zero (carbon), nature-positive and that aims to increase farmer resilience.
    2. It is an international alliance and a network of individuals and farming organisations interested in supporting and strengthening the development of organic animal husbandry.
    3. It is a digital platform fully integrated with service providers and built on blockchain that lets buyers, sellers and third parties trade fertilizers quickly and securely.
    4. It is a platform with the mission of encouraging farmers to form Farmer Producer Organisations or Agribusiness Consortiums, thus facilitating access to global open markets to sell their products.
    100 million farmers initiativeClimate-resilient food systemsEnvironment
    View answer & explanation
  11. Q251 Prelims 2024 Prelims GS

    With reference to radioisotope thermoelectric generators (RTGs), consider the following statements:
    1. RTGs are miniature fission reactors.
    2. RTGs are used for powering the onboard systems of spacecraft.
    3. RTGs can use Plutonium-238, which is a by-product of weapons development.
    Which of the statements given above are correct?

    1. 1 and 2 only
    2. 2 and 3 only
    3. 1 and 3 only
    4. 1, 2 and 3
    Radioisotope power systemsRadioisotope thermoelectric generatorsScience and technology
    View answer & explanation
  12. Q252 Prelims 2024 Prelims GS

    Consider the following statements:
    Statement-I: Giant stars live much longer than dwarf stars.
    Statement-II: Compared to dwarf stars, giant stars have a greater rate of nuclear reactions.
    Which one of the following is correct in respect of the above statements?

    1. Both Statement-I and Statement-II are correct and Statement-II explains Statement-I.
    2. Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I.
    3. Statement-I is correct, but Statement-II is incorrect.
    4. Statement-I is incorrect, but Statement-II is correct.
    AstronomyScience and technologyStellar evolution
    View answer & explanation

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