Given below are two statements. In the light of the above statements, choose the most appropriate answer from the options given below.

Statement I:Rising nutrient levels in a lake change the numbers and types of biota present there.

Statement II:Eutrophic lakes normally have clear water and contain little biomass.

ABoth Statement I and Statement II are correct

BBoth Statement I and Statement II are incorrect

CStatement I is correct but Statement II is incorrect ✓ Correct

DStatement I is incorrect but Statement II is correct

Correct answer: (C) Statement I is correct but Statement II is incorrect

Explanation

Statement 1 is correct: rising nutrient levels change the numbers and types of biota in a lake.

Statement 2 is incorrect: eutrophic lakes have turbid water and large biomass, not clear water.

Nutrient enrichment fuels algal blooms that cloud the water and cut oxygen.

Clear water with little biomass describes an oligotrophic, not eutrophic, lake.

The first statement holds while the second reverses eutrophic conditions.

Eutrophication often ends in oxygen-starved zones that kill fish.

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