NEET BiologyClass 12Sewage treatmentMediumAssertion–Reason

Read the Assertion and the Reason about the secondary stage of sewage treatment, and choose the correct option.

Assertion (A): The biological treatment of effluent in aeration tanks greatly reduces its BOD.
Reason (R): Vigorous aeration lets aerobic microbes grow as flocs that consume much of the organic matter.

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Read the Assertion and the Reason about the secondary stage of sewage treatment, and choose the correct option.

Practising is step one. Knowing what to practise next is the hard part.