Question

Global warming is caused due to an abnormal increase in the amounts of ___ gases in the atmosphere.

Answer 1

Greenhouse gases (GHGs) are those gases which can naturally retain heat in the atmosphere, thereby adding to warmth on the surface of the earth. The major greenhouse gases are carbon dioxide, methane, nitrous oxide, etc. Many anthropogenic activities lead to an increase in the amounts of these gases in the atmosphere, eventually resulting in global warming.