The green house gas/es is (are):

(A) Carbon dioxide

(B) Oxygen

(C) Water vapour

(D) Methane

Choose the most appropriate answer from the options given below:

Greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.

The green house gases are ${\mathrm{CO}}_2, {\mathrm{H}}_2{\mathrm{O}}_{\left(\mathrm{vapour}\right)}$ and ${\mathrm{CH}}_4$.