The most harmful of ultraviolet radiations are

Ultraviolet radiation is absorbed by

Ozone in the stratosphere is produced by the help of ultraviolet radiations. It protects us from harmful ultraviolet radiations. a) Write equation for the formation of ozone in stratosphere.

Ultraviolet radiations is absorbed by:

A considerable part of the harmful ultraviolet radiation of the sun does not reach the surface of earth. This is because in the upper atmosphere, there is a layer of