Question
Nitrogen constitutes nearly ____ % of the atmosphere.
Answer: Option D
:
D
Air is a mixture of gases. It contains about 78% nitrogen, 21% oxygen, 0.04% carbon dioxide, and very small amounts of othergases.
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:
D
Air is a mixture of gases. It contains about 78% nitrogen, 21% oxygen, 0.04% carbon dioxide, and very small amounts of othergases.
Was this answer helpful ?
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