Question

What is the composition of air at sea level

Answer 1

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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.
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Answer 2

Answer:

hi here is your answer dear

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 vapour ,on average around 1%at sea level ,and 0.4%over the entire atmosphere.

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