Science, asked by parthmhaisdhune70, 3 months ago

.....% of oxygen is present in atmosphere of the Earth
option :-12,21,78,22

Answers

Answered by tanushree06

2

Explanation:

21% of oxygen is present in atmosphere of the Earth.

Answered by mokshithagav

1

Answer:

21%

Explanation:

oxygen in the air is 21% ,

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