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Which gas is primarily responsible for global warming?

Which gas is primarily responsible for global warming?

  • (a) Oxygen
  • (b) Carbon dioxide
  • (c) Carbon mono-oxide
  • (d) Hydrogen
  • The primary cause of global warming is carbon dioxide, or CO₂. It enters the atmosphere primarily when we burn fossil fuels like coal, oil, and gas, as well as when forests are burned or cleared. CO₂ has the tendency to trap heat, which causes the greenhouse effect, hence global warming. Other greenhouse gases, like methane (CH₄) and nitrous oxide (N₂O), also contribute to global warming, but CO₂ is the primary cause.
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Related MCQs:

 ‘NATO’ is an abbreviation of:

March 18, 2026 No Comments
  • (A) North Atlantic Treaty Organization
  • (B) Non-Aligned Treaty Organization
  • (C) Non-Aligned Trading Organization
  • (D) North American Transport Organization

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