Question

The major constituent of atmosphere by per cent is
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Answer 1

Answer:

nitrogen

The atmosphere is composed mainly of nitrogen and oxygen, which make up about 99 per cent of clean, dry air. Nitrogen 78 per cent, oxygen 21 per cent and other gases like carbondioxide, argon and others comprise 1 per cent by volume.

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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