Depletion of ozone layer is caused by

Options

A. `CO_(2)`
B. Chloro fluorocarbons (CFCs)
C. `CH_(4)`
D. Oxides of S and N

Answer

B

Explanation

Chloro Fluoro Carbons(CFCs) are Inert and stable molecule. They are non-poisonous and widely used as refrigerants. They generate chlorine free radicals (CI), which reacts with ozone molecule and converts It Into oxygen and hence causes ozone layer depletion. The reaction, once start, continuoas for a long time.