Chemistry > 2013 > 17
JAMB UTME
In a water body, too much sewage leads to
A.
an increase in the bacterial population which reduced the level of oxygen in the water
B.
a decrease in the bacterial population which increases the level of oxygen in the water
C.
a decrease in the temperature of the water which causes death of aquatic animals
D.
an increase in the number of aquatic animals in the water
Answer: A
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