Which one of the following processes does not lead to loss of oxygen f

1.	Which one of the following processes does not lead to loss of oxygen from atmosphere?
A.	Respiration
B.	Surface weathering of exposed rocks.
C.	Break down of water by ultraviolet radiations into component molecules.
D.	Formation of carbonate shell materials by marine organisms.
Answer» D. Formation of carbonate shell materials by marine organisms.

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Which one of the following processes does not lead to loss of oxygen from atmosphere?

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