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What is the percentage of oxygen in air?

Published:   20-Sep-2020

(a) 20.81

(b) 20.87

(c) 20.95

(d) 21.05

Answer: 20.95

SSC | Subject : Biology | Chpater : Bioenergetics

Posted By :   | Shojb Rahman

Info:

What is the percentage of oxygen in air?

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