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QNEET-2023-Ch-200: NEET 2023 Chemistry - Class 12 NEET-2023-Ch-200 Solution: Given below are two statements: Statement I: The nutrient…
Given below are two statements: Statement I: The nutrient deficient water bodies lead to eutrophication. Statement II: Eutrophication leads to decrease in the level of oxygen in the water bodies. In the light of the above statements choose the correct answer from the options given below
Multiple Choice Options
- A Both Statement I and Statement II are false
- B Statement I is correct but Statement II is false.
- C Statement I is incorrect but Statement II is true.
- D Both Statement I and Statement II are true.
Step-by-Step Verified Solution
The correct answer is Option C : Statement I is incorrect but Statement II is true.
Statement I is incorrect. Eutrophication is not caused by nutrient-deficient water bodies, but rather by nutrient-rich water bodies. This process typically occurs when a body of water becomes overly enriched with nutrients (like phosphates and nitrates), often due to runoff from the land, which causes a dense growth of plant life, particularly algae blooms.
Statement II is true. The excessive plant growth and algal blooms caused by eutrophication can deplete the oxygen levels in the water when these organisms die and decompose. This can lead to the death of animal life, particularly fish, in the affected water body, a condition known as hypoxia.