Question

what is composition of air​

Answer 1

Answer:

By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.

Answer 2

Answer:

Air is a mixture of gasses. Dry air is made up of nitrogen 78% , oxygen 21% ,0.9% argon ,0.04% of carbon dioxide and 1% of water vapour.

Explanation:

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