Paper 1 · People, Development and Environment
UGC NET June 2024 Re-Exam (21.08.2024) Shift-I
When a water body becomes extremely low in nutrients, then it is called:
ADystrophic
BOligotrophic ✓ Correct
CMesotrophic
DEutrophic
Correct answer: (B) Oligotrophic — A water body extremely low in nutrients is oligotrophic, so that is the answer.
Explanation
★A water body extremely low in nutrients is oligotrophic, so that is the answer.
★Water bodies are classified by their nutrient content.
★An oligotrophic body has very low nutrient levels.
★So it supports little biological growth and stays clear.
★A eutrophic body is nutrient-rich with heavy growth.
★Mesotrophic is intermediate and dystrophic refers to acidic, humus-rich water, so oligotrophic fits.
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