What is the percentage of oxygen in air?

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What is the percentage of oxygen in air?

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Ayesha Akter · Answer 1 · 2021-12-05T16:07:57+0000

It's a mixture of different gases. The 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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What is the percentage of oxygen in air?

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