NEET Biology question

Not in NEET syllabus

Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from **[NEET-II 2016]**

(A)Domestic sewage
(B)Dairy industry
(C)Petroleum industryCorrect
(D)Sugar industry

Answer: (C)

Solution

BOD measures the oxygen consumed by microorganisms while decomposing biodegradable organic matter; petroleum industry effluents contain largely toxic, non-biodegradable and hydrocarbon-based pollutants that microorganisms cannot readily break down, so BOD fails to

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Question ID VK-130250