Question

Define air? write it's composition.​

Answer 1

Answer:

Air is the general name for the mixture of gases that makes up the Earth's atmosphere.

The Composition of Air:

Air is made up of 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and other gases in meager amounts. Water vapor is also a constituent of air in varying amounts along with dust particles.

Answer 2

Answer:

Air is the invisible mixture of gases that surrounds the Earth. Air contains important substances, such as oxygen and nitrogen, that most species need to survive.

75%is nitrogen ,24%o2,1%co2 methane water vapour

Explanation: