From which one of the following sources, the aquatic animals breathe i – McqOptions

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1.	From which one of the following sources, the aquatic animals breathe in oxygen in the water?
A.	(a) Dissolved oxygen in water
B.	(b) Oxygen from the atmosphere
C.	(c) Oxygen from the human
D.	(d) One animal gives out oxygen for the others
E.	(e) None of these
Answer» B. (b) Oxygen from the atmosphere

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