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The lakes are classified into how many types on the basis of productivity?

(a) 2

(b) 3

(c) 4

(d) 6

The question was posed to me by my college director while I was bunking the class.

My doubt is from Biological Zones in Lake in division Natural Methods of Wastewater Disposal of Environmental Engineering

1 Answer

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Best answer
Right answer is (c) 4

Best explanation: The lakes are classified into 4 types on the basis of productivity, namely Senescent, Oligotrophic, Eutrophic and Mesotrophic.

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