Science, asked by shiva7143, 1 month ago

percentage of only oxygen
​

Answers

Answered by nehabhosale454
1

Answer:

20.9 percent,

Normal Air Composition

Approximately 78 percent of the air is nitrogen gas while only about 20.9 percent is oxygen. The remaining fraction is made up of primarily argon gas, but trace amounts of carbon dioxide, neon and helium are also present.

Answered by redhishbai902
2

Explanation:

20.9 percent

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