Q.16 PH value of water.....? (a) (b) 7.5 (c) 6 (d) 6.5
Q.17 B.O.D stands for.......? (a) Biological oxygen demand (b) biochemical oxygen demand
(c) biochemical oxygen deficiency (d) biological oxygen deficiency
Answers
Answered by
8
Answer:
16 (d) 6.5 (generally ph value of water is between 6.5-8)
17(a)
biochemical oxygen demand
Answered by
9
Answer:
16) (d) 6.5
17) (a) biological oxygen demand.
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