Question

How is ozone formed in the upper atmosphere?state its importance.what is responsible for its depletion ?write one harmful effect of ozone depletion

Answer 1

Answer:

Ozone is formed by three atoms of oxygen. In the higher levels of the atmosphere, it is a product of UV radiation acting on O2 molecules that split it into free oxygen (O). These combine with O2 to form ozone.

O2 —— O+O

O+O2 —— O3

Explanation:

IMPORTANCE:

- it shields the earth’s surface from UV radiation from the sun.

REASON FOR DEPLETION:

synthetic chemicals like CFCs used as refrigerants and fire extinguishers

HARMFUL EFFECT:

-it is a deadly poison.