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

asked May 23, 2017 225k views

1 vote

About how much of Earth’s atmosphere is oxygen?

35%
21%
50%
78%

by Daler

6.8k points

Please log in or register to add a comment.

2 votes

earth's atmosphere is made up of 21% of oxygen

Fhollste answered May 25, 2017

7.2k 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.

Ixaxaar answered May 27, 2017

6.7k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.2m questions

9.6m answers