Question

The proportion of which gas is highest in air? ​

Answer 1

Answer:

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Explanation:

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

Answer 2

Answer:

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