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Question 14044
NEET Biology · Hard

Microbes in Human Welfare: BOD Logic MCQ

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BOD LogicHardQuestion 14044

Question

If BOD of water sample falls after treatment, it generally indicates:

  1. A
    Cleaner water with lower organic load
    Correct
  2. B
    More pollution than before
  3. C
    No microbial activity ever occurred
  4. D
    Higher chlorophyll in roots

Correct answer

Cleaner water with lower organic load

Explanation

Successful treatment reduces biodegradable waste and thus oxygen demand.

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