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Water Pollution MCQ Questions and Answers PDF - 4

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Water Pollution MCQ with Answers PDF Download: Quiz 4

MCQ 16: Which bacteria consumes organic matter as their food, and thus oxidizing it to stable end product?

A) Viruses
B) Aerobic Bacteria
C) Anaerobic Bacteria
D) Rotifers

MCQ 17: Eight of the top world's biggest cities are located in

A) Mountain Areas
B) Coastal Areas
C) Hilly areas
D) Terrestrial Areas

MCQ 18: How many grams of air in a liter ?

A) 1.5 gm
B) 1.3gm
C) 1.2gm
D) 7gm

MCQ 19: Bacterial decomposition of organic matter, releases NO2 into the

A) Stratosphere
B) Troposphere
C) Atmosphere
D) Biosphere

MCQ 20: Uncontrolled, dumping is the cheapest method of

A) Solid waste
B) Chemical Waste
C) Nuclear Waste
D) Food Waste

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