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Pollution BOD and Eutrophication MCQ Quiz PDF Download

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Biology: Pollution BOD and Eutrophication MCQs PDF Download

MCQ: The higher the BOD, the

A) lower the water pollution
B) lesser the bacteria in it
C) more the water pollution
D) the more the air pollution

MCQ: Narrow tolerance of oxygen (O2) is found in

A) humans
B) plants
C) mammals
D) fish

MCQ: BOD measures the amount of

A) bacteria in a given sample of water
B) algae being decomposed in a given sample
C) oxygen bacteria need to decompose organic matter in a given sample
D) oxygen bacteria need to decompose organic matter in a given sample in a fixed period of time

MCQ: The word BOD refers to the

A) Bidding of Dermatology
B) Binding of Dirt
C) Biochemical occupied Date
D) Biochemical Oxygen demand

MCQ: Fish die as a result of water pollution due to

A) less BOD
B) more tolerance range for oxygen
C) narrow tolerance range for oxygen
D) zero tolerance range for oxygen

Practice Tests: O Level Biology Exam Prep

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