Question

Global warming is mainly due to the increase of:

• A. methane and $N{O}_2$ in atmosphere
• B. methane and $C{O}_2$ in atmosphere
• C. methane and $O_3$ in atomsphere
• D. methane and $CO$ in atmosphere

Answer 1

Answer: (B)

methane and $C{O}_2$ in atmosphere

The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions. The effect of this is global warming.

Global warming is due to the increase of greenhouse gases like methane and $C{O}_2$ in the atmosphere. Methane and carbon dioxide have a major contribution to global warming.

Hence, option $B$ is correct.