About how much of Earth’s atmosphere is oxygen? 35% 21% 50% 78%

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asked May 23, 2017 225k views

2 Answers

Ixaxaar · Answer 1 · 2017-05-26T22:53:39+0000

Nitrogen takes up 78% of the atmosphere, Oxygen takes up 21% of the atmosphere, and the rest is other gases like Methane, and Carbon Dioxide.