Question

PLEASE HELP FAN AND MEDAL GIVEN! Identify the two gasses that absorb only UV light (and not visible or infrared).

Answer 1

Two gases make up the bulk of the earth's atmosphere: nitrogen (), which comprises 78% of the atmosphere, and oxygen (), which accounts for 21%. Various trace gases make up the remainder.

In which the earth's atmosphere protects us from the UV light.

More about it here:
http://www.theozonehole.com/atmosphere.htm