Question

Describe the composition of the atmosphere.

Answer 1

The Earth's atmosphere is made up of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. There are traces 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

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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