Civil Engineering - UPSC Civil Service Exam Questions - Discussion

33. 

Which of the following pairs is/are correctly matched ?
1. Eutrophication.... Nutrient accumulation leading to ecosystem change occurring in impounded water.
2. Autotrophism.... Utilization, rearrangement and decomposition of complex materials predominate.
3. Heterotrophism....Predominance of fixation of light energy, use of simple inorganic substances and built-up complex substances.
Select the correct answer from the codes given below :

[A]. 1, 2 and 3
[B]. 1 alone
[C]. 2 and 3
[D]. 1 and 3

Answer: Option B

Explanation:

No answer description available for this question.

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