Question

What is air define ?????​

Answer 1

$\underline{\bf\blue{Answer:-}}$

Air is the general name for the mixture of gases that makes up the earth's atmosphere.This gas is primary nitrogen(78℅), mixed with oxygen(21℅,water vapour(variable), argon(0.9℅), carbon dioxide(0.04℅) and trees gases.

Answer 2

$\underline{\bf\pink{Answer:-}}$

The atmosphere of earth is the layer of gases commonly known as air.