Air is a mixture of gases that surrounds the Earth and is made up of the following components : - Nitrogen, Oxygen ,Argon, Carbon dioxide,Water vapour,Rare gases, Solids and liquids

Air is invisible,and tasteless, but we can feel it when it moves, like when the wind blows. We can also hear it when it moves very fast. 

The layers of air that cover the Earth are known as the atmosphere. The atmosphere is critical for living things on Earth, providing important substances like oxygen and nitrogen that most species need to survive.