Question

What is ozone depletion, and how does it occur?

Answer 1

Ozone depletion is the breakdown of ozone layer, by the effect of CFC's on it.

Actually what happens their, the synthetic chemical which is the CFC thier acts as a killer of it, which results for its breakdown.

Formation of ozone layer involves,

O2 ---UV ----> O + O

O + O2 -----> O3

So, if their is any difficulty in occurring this, then the result will only be its depletion.