rhsg7wugwyehehhehe rhsg7wugwyehehhehe
  • 01-10-2020
  • Chemistry
contestada

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

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liv0912
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 lbrown4915
  • 05-10-2020
Earth’s atmosphere is comprised of 21% oxygen
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