sophiadelarosa sophiadelarosa

12-01-2022
Biology

contestada

NO FAKE ANSWERS AND NO LINKS. How much oxygen does the atmosphere contain?

Respuesta :

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12-01-2022

Answer:

21%

Explanation:

To remember this percentage, use the amount of land and water on earth, like this: 3 (land) x 7 (water) = 21

(note: oxygen does not change depending on land or water amount)

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