Which of the following pairs of gases is mainly responsible for green house effect?

  1. A) Carbon dioxide and Methane
  2. B) Ozone and Ammonia
  3. C) Oxygen and Nitrogen
  4. D) Nitrogen and Sulphur dioxide

Answer:A) Carbon dioxide and Methane

Explanation: Greenhouse effect is the naturally occurring phenomenon that is responsible for heating of Earth’s surface and atmosphere. Carbon dioxide and methane are the biggest contributors of greenhouse effect. Carbon dioxide and methane account for 56.4% and 16.3% greenhouse effect, respectively. Ozone is responsible for 10%, nitrous oxide 5.4% and halocarbons 11.6% of the greenhouse effect.

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