Consider the following gases:

  1. Water Vapour
  2. Ozone
  3. Methane

 Which of the above is/are primary greenhouse gas/gases?

Answer: [D] 1, 2 & 3

Greenhouse gas is that gas which absorbs and emits radiation within the thermal infrared range. The primary greenhouse gases in Earth's atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, and ozone.

This question is a part of GKToday's Integrated IAS General Studies Module