A) profundal zone
B) littoral zone.
C) limnetic zone
D) both [b] and [c].
Correct Answer: A
Solution :
: There are three distinct zones in freshwaters- (i) Littoral zone - A shallow water region of the marginal slope with light penetration. (ii) Limnetic zone - An open water zone to the depth of effective light penetration and thus a euphotic zone. (iii) Profundal zone - The bottom and deep water area, beyond the depth of effective light penetration, it is often absent in shallow water reservoirs.
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