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BOD of raw municipal sewage may be in the range of about __________ mg/litre.

Question: BOD of raw municipal sewage may be in the range of about __________ mg/litre.
[A].

1-2

[B].

5-10

[C].

150-300

[D].

2000-3000

Answer: Option C

Explanation:

No answer description available for this question.