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UPSC Civil Service Exam Questions

Q1: 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

ANS:B - 1 alone

Heyrophism- like humans, birds etc.

Autotrophism- like plants[utilizes light oxygen co2].



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