Which of the following is NOT a green house gas?

Detailed Solution:

The correct answer is “Argon”.

Argon is a noble gas that does not contribute to the greenhouse effect. It is chemically inert and does not absorb or emit infrared radiation, which is the characteristic of greenhouse gases.

The primary greenhouse gases in Earth's atmosphere are water vapor (H 2O), carbon dioxide (CO 2), methane ( CH 4), nitrous oxide ( N 2O), and ozone (O3).