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

35%
21%
50%
78%

User Daler
by
8.3k points

2 Answers

2 votes
earth's atmosphere is made up of 21% of oxygen
User Fhollste
by
8.6k points
1 vote
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.
User Ixaxaar
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8.5k points
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