A) euphoric, disphotic and aphotic
B) aphotic, euphoric and disphotic
C) euphoric, aphotic and disphotic
D) euphotic, disphotic and aphotic
Correct Answer: A
Solution :
Depending on light penetration the water bodies are divided into three zones: Euphotic zone: It is the uppermost zone. It have maximum penetration of light, phytoplanktons are present in this zone. Disphotic zone: It is middle zone. The light penetration decreases and light diffused. Primary consumers are found in this zone Aphotic zone: It is deepest zone. There is no light penetration. Predators and decomposers are found in this zone.
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