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Climate Change — GK Questions with Answers

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12 questions
  1. In which months is ozone depletion over Antarctica greatest?
    1. December–January
    2. October–November
    3. September–October
    4. August–September
    Show answer

    Answer: (C) September–October

    Chlorine becomes active as sunlight returns in the southern spring.

  2. CFCs, the ozone-depleting substances, have been used in — 1. making plastic foams 2. making tubeless tyres 3. cleaning certain electronic components 4. as pressurising agents in aerosol cans (UPPCS 2012)
    1. 1, 2 and 3
    2. 4 only
    3. 1, 3 and 4
    4. All four
    Show answer

    Answer: (C) 1, 3 and 4

    CFCs have no use in tubeless tyres.

  3. Acid rain is caused mainly by which pollutants? (IAS 2013)
    1. CO₂ and nitrogen
    2. Ozone and CO₂
    3. CO and CO₂
    4. Oxides of nitrogen and sulphur dioxide
    Show answer

    Answer: (D) Oxides of nitrogen and sulphur dioxide

    They dissolve in water to form nitric and sulphuric acids.

  4. What is emitted from coal-fired thermal power plants? 1. CO₂ 2. Oxides of nitrogen 3. Sulphur dioxide (IAS 2011)
    1. 1 only
    2. 2 and 3
    3. 1 and 3
    4. All three
    Show answer

    Answer: (D) All three

    Burning coal releases all three gases.

  5. The UNFCCC was formed at — (IAS 2010)
    1. Stockholm UN Conference on the Human Environment, 1972
    2. Rio de Janeiro UN Conference on Environment and Development, 1992
    3. Johannesburg World Summit on Sustainable Development, 2002
    4. Copenhagen Climate Conference, 2009
    Show answer

    Answer: (B) Rio de Janeiro UN Conference on Environment and Development, 1992

    It opened for signature at the Rio Earth Summit (1992).

  6. The likely cause of the ozone hole over Antarctica is — (IAS 2013)
    1. Tropospheric turbulence and inflow of CFCs
    2. Polar front (vortex) and stratospheric clouds, with inflow of CFCs
    3. Absence of polar clouds and inflow of methane and CFCs
    4. Warming of the poles by global warming
    Show answer

    Answer: (B) Polar front (vortex) and stratospheric clouds, with inflow of CFCs

    Chlorine is activated on cold polar clouds.

  7. India's likely limitations in mitigating global warming — 1. suitable alternative technologies are not sufficiently available 2. India cannot invest huge funds in R&D 3. developed countries have already set up many polluting industries in India (IAS 2012)
    1. 1 and 2
    2. 2 only
    3. 1 and 3
    4. All three
    Show answer

    Answer: (A) 1 and 2

    The third statement is not factually based.

  8. Which are major sources of methane? 1. Rice fields 2. Coal mining 3. Domestic animals 4. Wetlands (IAS 2008)
    1. 1 and 4
    2. 2 and 3
    3. 1, 2 and 3
    4. All four
    Show answer

    Answer: (D) All four

    All four release methane through oxygen-free decay or leakage.

  9. Correct statement(s) about the Global Environment Facility (GEF) — (a) it is the financial mechanism of the CBD and UNFCCC (b) it conducts scientific research on global environmental issues (c) it is an OECD agency (IAS 2014)
    1. (a) only
    2. (a) and (b)
    3. (b) and (c)
    4. All three
    Show answer

    Answer: (A) (a) only

    GEF is a funding mechanism — neither a research body nor an OECD agency.

  10. About the Green Climate Fund (GCF) — 1. it is meant to help developing countries with adaptation and mitigation 2. it was set up jointly by UNEP, OECD, the World Bank and the Asian Development Bank (IAS 2015)
    1. 1 only
    2. 2 only
    3. 1 and 2
    4. Neither
    Show answer

    Answer: (A) 1 only

    The GCF was set up by the UNFCCC parties; the World Bank is only interim trustee.

  11. What are the targets of India's NDC 2035 (2026)?
    1. Intensity down 45%, 50% non-fossil capacity
    2. Intensity down 47%, ~60% non-fossil capacity
    3. Total emissions to fall from 2030
    4. Net zero by 2050
    Show answer

    Answer: (B) Intensity down 47%, ~60% non-fossil capacity

    45% / 50% were the 2030 targets (2022); net zero is 2070.

  12. What is the New Collective Quantified Goal (NCQG) agreed at COP-29 (Baku, 2024)?
    1. $100 billion a year by 2025
    2. At least $300 billion a year by 2035
    3. $1 trillion a year by 2030
    4. $50 billion for the loss-and-damage fund
    Show answer

    Answer: (B) At least $300 billion a year by 2035

    Along with a call to scale up to $1.3 trillion a year by 2035.

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