Civil Services TSPSC Group 1 Mock Test 2022-23 General Knowledge Ecology and Environment Environment Problems
With reference to Eutrophication, Which of the following is/are true?
(i) It is the phenomenon of nutrient enrichment of a water body.
(ii) It depletes the water of dissolved oxygen (DO).
(iii) Human activities are mainly responsible for eutrophication.
Select the correct answer from the following codes
1
(i) only
2
(i) and (ii) only
3
(i) and (iii) only
4
All of these