Question

what fraction of air is Oxygen?

Answer 1

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By Volume:

(1)Dry air contain's 78.09% nitrogen

(2)20.95% Oxygen

(3)0.93% Argon

(4)0.04% Carbon Dioxide &,

(5)Small amount of other gases.

Air also contain's 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:

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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