A) littoral zone
B) limnetic zone
C) profundal zone
D) benthic region
Correct Answer: B
Solution :
In a lake, there are littoral zone, limnetic zone and profundal zone. In limnetic zone, the producers are mainly phytoplanktonic algae which are diatoms, green algae and blue green algae. In profundal zone, the organisms mainly depend for their food on the littoral and limnetic zone.
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