Question

Which answer correctly lists the composition of earth’s atmosphere?

Answer 1

Answer:

Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases

Explanation:

Answer 2

Answer:

By volume, dry air contains 78.09 % of nitrogen, 20.95% of oxygen, 0.93 °/°of Argon, 0.04% of carbon dioxide and small amounts of other gases. Air also contains a various amount of water vapour, on average around of 1% at sea level, and 0.4 % over the entire.

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