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Question

The two major gaseous components of air are:

A
nitrogen and oxygen
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B
carbon dioxide and oxygen
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C
argon and water vapour
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D
argon and carbon dioxide
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Solution

The correct option is A nitrogen and oxygen
Air is made up of 78.09% of nitrogen, 20.95% of oxygen, 0.93% of argon, 0.04% of carbon dioxide gas, and other gases in trace amounts. Thus nitrogen and oxygen are major gaseous components of air. Hence option A is correct.

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