Question

ATMOSPHERE CONSISTS OF79 PERCENT NITROGEN AND 21% OXYGEN BY

Answer 1

Answer:

78 percent is the correct answer

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Answer 2

Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly 78% nitrogen and 21% oxygen 0.97% argon and carbon dioxide 0.04% trace amounts of other gases, and water vapor. This mixture of gases is commonly known as air.