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The most abundant constituent of atmospheric air is

This question belongs to General Knowledge Chemistry
Chemistry
?

The most abundant constituent of atmospheric air is :

Answer & Solution
Correct Answer: Option D
Air is the name given to the atmosphere used in breathing and photosynthesis. Dry air contains roughly (by volume) 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases.
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