NEET Biology question

Sewage must be treated before being let into natural water bodies mainly because untreated sewage

(A)Is too expensive to transport otherwise
(B)Contains large amounts of organic matter and many disease-causing microorganismsCorrect
(C)Increases the salinity of rivers excessively
(D)Has too high an oxygen content

Answer: (B)

Solution

Untreated sewage carries heavy loads of organic matter and numerous pathogenic microorganisms, both of which

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Question ID VK-124320