rhsg7wugwyehehhehe rhsg7wugwyehehhehe

01-10-2020
Chemistry

contestada

How much of Earth’s atmosphere is comprised of oxygen?

Respuesta :

liv0912 liv0912

01-10-2020

Answer:

21 percent

Explanation:

Air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.

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lbrown4915 lbrown4915

05-10-2020

Earth’s atmosphere is comprised of 21% oxygen

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