Question

How is ozone layer formed ? State its importance to all life forms on
earth ? Why the amount of ozone in the atmosphere dropped sharply in
the 1980s ?​

Answer 1

Explanation:

Stratospheric ozone is formed naturally by chemical reactions involving solar ultraviolet radiation (sunlight) and oxygen molecules, which make up 21% of the atmosphere. In the first step, solar ultraviolet radiation breaks apart one oxygen molecule (O2) to produce two oxygen atoms (2 O) (see Figure Q2-1).

Our home planet provides us with life and protects us from space. Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life.

The amount of Ozone in the atmosphere began to drop sharply in the 1980s. This decrease is due to the synthetic chemicals like chlorofluorocarbons which are used as refrigerants and in fire extinguishers.