JillianVelvet JillianVelvet

25-05-2020
Health

contestada

for human survival, approximately what percentage of air must be oxygen?

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Аноним Аноним

25-05-2020

Answer:

20.9 percent

Around 78% of the air is nitrogen gas, and only 20.9% is oxygen.

Explanation:

20.9 percent

Around 78% of the air is nitrogen gas, and only 20.9% is oxygen.

Hope this helps.

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alaczko1 alaczko1

26-10-2020

20.9 around 78 percent nitrogen only 20.9 for oxygen

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