Question

22. Which among the following gases do not contribute to greenhouse effect?

• A. methane
• B. carbon dioxide
• C. water vapour
• D. nitrogen dioxide

Answer 1

The correct option is D

nitrogen dioxide

Explanation:

• The greenhouse effect is the way of absorbing the radiation of the sun by greenhouse gases.
• Greenhouse gases present in the atmosphere absorb infrared radiation (IR) and re-radiate the heat in every direction.
• The gases like Carbon dioxide$\left({\mathrm{CO}}_2\right)$, water vapors, Methane$\left({\mathrm{CH}}_4\right)$, Ozone$\left({\mathrm{O}}_3\right)$, CFCs (Chlorofluorocarbon), etc., absorb the IR radiations.
• Thus, Nitrogen dioxide $\left({\mathrm{NO}}_2\right)$ is not a greenhouse gas. It does not contribute to the greenhouse effect.

Hence, option (D) is the correct answer.