We are lucky that ozone is not stable near to the Earth's surface. Why? Gie appropriate answer.

Give reasons for the following: (i) We are lucky that ozone is not stable near Earth's surface. (ii) The combustion of fossil fuels increases the amount of suspended particles in air.

What is the thickness of the ozone layer over the Earth surface?

Ozone layer protect earth surface from

Rate of change of weight near the earth's surface varies with height h as

The total ozone layer over the earth surface is............

A satellite is revolving near the earth's surface, Its orbit velocity is

If a satellite revolving at a height 2000 km from the surface of the earth is to be brought near the earth's surface then , the critical velocity of the satellite must ……….