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साँस छोड़ने वाली हवा में ऑक्सीजन का प्रतिशत है: , The percentage of oxygen in exhaled air is:
The percentage of oxygen in exhaled air is:
A.
14.4%
14.4%
B.
4.4%
4.4%
C.
16.4%
16.4%
D.
0.04%
0.04%
Solution
C. 16.4%
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