Question

explain the composition of air​

Answer 1

Answer:

dry air contains 78.09% nitrogen,

20.95% oxygen, 0.93% argon,

0.03% carbon dioxide,

other gases  like helium, ozone and hydrogen are 0.04%

Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.

Nitrogen and carbon dioxide are really important for the survival of plants. While oxygen is a very important gas for the survival of animals. The other gases all have their own importance in science and technology and keeping the world working.

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