Analysis of a sample of air gives the following details. Nitrogen Oxyg – McqOptions

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1.	Analysis of a sample of air gives the following details. Nitrogen Oxygen Carbon dioxide 78.0% 16.4% 4.4% From which of the following sources the sample of air is most probably taken
A.	Dissolved air from pond water.
B.	Fresh air from a field.
C.	Exhaled air.
D.	inhaled air.
Answer» D. inhaled air.

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