Question

how is ozone layer useful for us

Answer 1

Explanation:

It prevents the ultraviolet rays from the sun to enter the Earth. Ultraviolet rays are the main reason behind Global warming. Global warming is very harmful to us, animals, plants and every natural thing. So, ozone is very important and useful for us.

Hope it helps !!

Answer 2

Ozone is present in the upper layers of the atmosphere (stratosphere). Before reaching the Earth, the sunrays pass through the stratosphere. The ozone layer present there absorbs the harmful UV rays present in the sunrays and prevent them from reaching the Earth. Thus, it protects the entire planet from disastrous effects of UV rays.