Paper 1 · People, Development and Environment
UGC NET December 2023 Re-Exam (14.12.2023) Shift-II
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 — Statement I is correct but Statement II is incorrect, so that is the answer.
Explanation
★Statement I is correct but Statement II is incorrect, so that is the answer.
★Rising nutrients change which organisms can live and thrive in a lake.
★This shifts the numbers and types of biota, so Statement I is correct.
★A eutrophic lake is nutrient rich and supports heavy algal and plant growth.
★Such lakes have murky water and large biomass, not clear water.
★So Statement II reverses the truth and is incorrect.
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