Question

Carbon dioxide is called green-house gas because it is

• A. used in green-house to increase plant growth
• B. transparent to heat but traps sunlight
• C. transparent to sunlight but traps heat
• D. transparent to both sunlight and heat

Answer 1

The Correct Option is C

The excess amount of $ CO_{2} $ forms a thick blanket in the atmosphere which is transparent to sunlight but absorbs infrared radiation trapping heat near the earths surface. In this way, due to $ CO_{2} $ blanket, the earths atmosphere works very much like agreen-house which causes warming up of the interior. So, carbon dioxide is called green house gas.