Question

State two forms in which the elemental oxygen is found in the earth’s atmosphere. Mention in brief the essential function performed by each at the place they are found. What are CFCs and why are these considered harmful for the life on the earth?

Answer 1

Ozone and oxygen (O2) Ozone prevent harmful ultraviolet suns radiation from reaching earths surface CFC are chloro Fluro carbon They create a hole in ozone layer which allows UV rays to e Reach earth So CFCs are harmul

Answer 2

Answer:

the two forms of oxygen found in the atmosphere are diatomic oxygen and ozone (o3).

Explanation:

ozone prevents the harmful ultraviolet rays of the sun from reaching on the earth surface.

CFC's are chloro fluro carbon gas and they create holes and damage the ozone layer which let uv rays to in the earth atmosphere.

so the CFC's are harmful to earth.