UGC NET Computer Science December 2019 | Question 40

Question 40

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The most important pollutants that cause degradation of water quality in rivers and streams are
(a) Bacteria
(b) Nutrients
(c) Metals
(d) Total dissolved solids
(e) Algae
Choose the most appropriate answer from the options given below :

1. 1. (a), (b) and (c)
2. 2. (a), (b) and (d)
3. 3. (a), (b), (d) and (e)
4. 4. (a), (b), (c), (d) and (e)

Answer 1

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