Question

Mention any three human activities which are responsible for the depletion of the ozone layer.

Answer 1

Ozone layer:

It is a shield of the earth's stratosphere, absorbing maximum ultraviolet radiation coming from the sun.

Human activities that are responsible for the depletion of the ozone layer:

1. Excessive use of chlorofluorocarbons (CFCs).
2. Nuclear testing.
3. Excessive use of nitrogenous fertilizers.