The percentage of oxygen present in air is approximately- Options: A . &nbsp0.21 B . &nbsp0.23 C . &nbsp0.44 D . &nbsp0.4

The percentage of oxygen present in air is approximately-

Question

The percentage of oxygen present in air is approximately-

Options:

A . 0.21

B . 0.23

C . 0.44

D . 0.4

Answer: Option A

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