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Question
Which gas makes up about 0.9% of the air we breathe?
Which gas makes up about 0.9% of the air we breathe?
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Solution
The correct option is B Argon
The clean, dry air consists mainly of nitrogen at 78 per cent and oxygen at 21 per cent by volume. The remaining 1 per cent consists of a mixture of other gases, like argon at 0.9 per cent, along with traces of carbon dioxide, methane, hydrogen, helium, and water vapour.
The clean, dry air consists mainly of nitrogen at 78 per cent and oxygen at 21 per cent by volume. The remaining 1 per cent consists of a mixture of other gases, like argon at 0.9 per cent, along with traces of carbon dioxide, methane, hydrogen, helium, and water vapour.
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