Given below are two statements. In the light of the above statements, choose the correct answer from the options given below.
Statement I:Cultural eutrophication is caused by increased nutrient input into a water body mainly due to human activities.
Statement II:Cultural eutrophication decelerates the ageing of a water body enormously over natural rates.
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 but Statement 2 is incorrect regarding cultural eutrophication.
Statement 1 holds, as human activities load water bodies with extra nutrients.
Statement 2 fails, since cultural eutrophication greatly accelerates, not slows, a water body's ageing.
Fertiliser runoff and sewage supply the excess nitrogen and phosphorus.
The resulting algal blooms fill and age the water body faster than nature would.
Natural eutrophication, by contrast, unfolds over thousands of years.
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