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Which of the following Greenhouse gases has the greatest warming effect?

Which of the following Greenhouse gases has the greatest warming effect?

  • (A) Carbon dioxide
  • (B) Carbon monoxide  
  • (C) Methane  
  • (D) Helium
Although the punch of gases such as methane is greater per molecule, in the end, the greenhouse effect is primarily caused by the sheer concentration of carbon dioxide in the atmosphere because of its long residence time. CO2 is responsible for 65-80% of the warming effect caused by human activity. Unlike methane, which remains in the atmosphere for just 12 years, CO2 remains in the atmosphere for centuries or millennia. It is the most abundant greenhouse gas emitted by human activity, such as the burning of fossil fuels and the clearing of forests.
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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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