Question

Increase in CO₂ is harmful in atmosphere because it ______.

Options

• stops UV rays of sun

• leads to global warming

• causes respiratory disorders

• is cancerous

Answer 1

Increase in CO₂ is harmful in atmosphere because it leads to global warming.

Explanation:

Carbon dioxide is a greenhouse gas that absorbs outgoing infrared radiation, contributing to global warming. It does not stop UV rays, and the remaining options are not the reason given for its atmospheric harm.