Question

what is the composition of Atmosphere
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Answer 1

Explanation:

Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent.

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Answer 2

Answer:

approximately 78 percent nitrogen and 21 percent oxygen.