Water-Pollution
Question 1 |
The most important pollutants that cause degradation of water quality in rivers and streams are
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(a) Bacteria
(b) Nutrients
(c) Metals
(d) Total dissolved solids
(e) Algae
Choose the most appropriate answer from the options given below:
(a), (b) and (c) | |
(a), (b) and (d) | |
(a), (b), (d) and (e) | |
(a), (b), (c), (d) and (e) |
Question 2 |
During the physical treatment process of wastewater, what is the correct order of following operations to be followed?
A) Flocculation
B) Filtration
C) Screening
D) Sedimentation
Choose the correct answer from the options given below:
A) Flocculation
B) Filtration
C) Screening
D) Sedimentation
Choose the correct answer from the options given below:
(C), (D), (B), (A)
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(C), (D), (A), (B)
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(B), (D), (A), (C)
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(B), (C), (D), (A)
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