Question

write a defination of air and atmosphere 3-4 lines

Answer 1

Air is the Earth's atmosphere. Air around us is a mixture of many gases and dust particles. It is the clear gas in which living things live and breathe. It has an indefinite shape and volume. It has no color or smell. It has mass and weight, because it is matter. The weight of air creates atmospheric pressure. There is no air in outer space.

An atmosphere is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body.