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UPPSC PCS 2020 · Question 74 of 148

With reference to Eutrophication: 1. It decreases dissolved oxygen of water. 2. It is a phenomenon of nutrient enrichment of a water body.

Environment

  1. A1 only
  2. B2 only
  3. CBoth 1 and 2Correct
  4. DNeither 1 nor 2

Answer: C. Both 1 and 2

Explanation

Eutrophication is nutrient enrichment (nitrates/phosphates) of water bodies, which depletes dissolved oxygen as algae decompose.

Source: https://www.drishtiias.com/images/pdf/UPPSC 2020 Prelims GS Paper - 1.pdf

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