Question

what is the composition of air? ​

Answer 1

Answer:

Composition of air

Nitrogen — 78 percent. Oxygen — 21 percent. Argon — 0.93 percent. Carbon dioxide — 0.04 percent

Answer 2

Answer:

Air is a mixture of gases, containing nitrogen ( about 78% by volume) and oxygen ( about 21% by volume). The remaining 1% is made up of a gas called argon ( about 0.9% ), carbon dioxide (0.03%), and small amounts of other gases. Varying quantities of dust, smoke and water vapour are also present. The amount of these in the air varies from place to place and from time to time. These are composition of air.

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