NEET Previous Year Question

Select the correct statement from the following.

Topic: NEET PYQ

Answer: D. Full step-by-step solution below.

  1. ABiogas is produced by the activity of aerobic bacteria on animal waste.
  2. BMethanobacterium is an aerobic bacterium found in rumen of cattle.
  3. CBiogas, commonly called gobar gas, is pure methane.
  4. DActivated sludge-sediment in settlement tank of sewage treatment plant is a right source of aerobic bacteria

Correct answer: D

Solution

(d) Activated sludge contains a large number of aerobic bacteria used in secondary sewage treatment.

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