UPSC sample papers

Water Pollution Questions for Students

water pollution mcq

Quiz questions on Water Pollution:

Ques. High coliform count in water is an indicator of
(a) Industrial pollution
(b) Sewage contamination
(c) Hardness of water
(d) Oil pollution
Ans. (b)

Ques. __ is used to check water pollution caused by industrial affluents
(a) Water Hyacinth
(b) Parthenium
(c) Elephant Grass
(d) All of these
Ans. (a)

Ques. The high amount of E. coli in water is the indicator of
(a) Hardness of water
(b) Industrial pollution
(c) Sewage pollution
(d) Presence of chlorine in water
Ans. (c)

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Ques. One of the following is the chief source of water and soil pollution
(a) Agro industry
(b) Mining
(c) Thermal power stations
(d) All of these
Ans. (d)

Ques. Which of the following is biodegradable pollutant
(a) Sewage
(b) Plastic
(c) Polythene
(d) DDT
Ans. (a)

Ques. B.O.D. test or biological oxygen demand test is made for measuring
(a) Air pollution
(b)Water pollution
(c) Noise pollution
(d) Soil pollution
Ans. (b)

Ques. Water pollution
(a) Increases oxygenation
(b) Decreases turbidity
(c) Increases turbidity and deoxygenation
(d) Increases photosynthesis
Ans. (c)

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Ques. Polluted water can be purified by using
(a) Micro-organisms
(b) Algae
(c) Pesticides
(d) Fishes
Ans. (a)

Ques. Biological Oxygen Demand (BOD) is a measure of
(a) Industrial wastes poured into water bodies
(b) Extent to which water is polluted with organic compounds
(c) Amount of carbon monoxide inseparably combined with haemoglobin
(d) Amount of oxygen needed by green plants during night
Ans. (b)

Ques. Which of the following is a water polluting factor
(a) Smoke
(b) Industrial waste
(c) Detergent
(d) Ammonia
Ans. (b)

Ques. Which of the following is a main factor of water pollution
(a) Commercial production
(b) Windmill
(c) Smoke and ammonia
(d) Detergents
Ans. (d)

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Ques. Sewage water can be purified for recycling with the action of
(a) Aquatic plants
(b) Penicillin
(c) Micro-organisms
(d) Fishes
Ans. (c)

Ques. Who was the first to recognise the problem of water pollution ?
(a) Airstotle
(b) Theophrastus
(c) Hippocrates
(d) Thales
Ans. (c)

Ques. Thermal pollution of water bodies is due to
(a) Discharge of heat (hot water) from power plants
(b) Discharge of chemicals from industries
(c) Discharge of waste from mining
(d) Discharges of agricultural run off
Ans. (a)

Ques. Water pollution is caused due to
(a) Sewage and other wastes
(b) Industrial effluents
(c) Agricultural discharges
(d) All of these
Ans. (d)

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Ques. In the treatment of waste water discharge, which treatment stage involves biological treatment
(a) Primary treatment
(b) Secondary treatment
(c) Tertiary treatment
(d) Reverse osmosis stage
Ans. (b)

Ques. Water pollution can be stopped best by
(a) Treating effluents to remove injurious chemicals
(b) Rearing more fishes
(c) Cultivating useful water plants
(d) Spraying with DDT
Ans. (a)

Ques. The main cause of water pollution is
(a) Soap
(b) Industrial effluents
(c) Smoke
(d) Ammonia
Ans. (b)

Ques. Minamata disease is a pollution related disease results from
(a) Oil spills into sea
(b) Accumulation of arsenic into atmosphere
(c) Release of industrial waste mercury into fishing water
(d) Release human organic waste into drinking water
Ans. (c)

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Ques. The excessive discharge of fertilizers into water bodies results in
(a) Growth of fish
(b) Death of hydrophytes
(c) Eutrophication
(d) Silt
Ans. (c)

Ques. Foul smell in the water of tanks, ponds etc. is due to
(a) Anaerobiosis
(b) Aerobiosis
(c) Biological magnification
(d) Psammophytes
Ans. (a)

Ques. Which of the following does not occur when the sewage is discharged into water
(a) Increase in O2
(b) Cyanophycean blooms occur
(c) Depletion of O2 layers
(d) Eutrophication
Ans. (a)

Ques. Fishes die by sewage because
(a) Of its bad smell
(b) It replaces food material of fishes
(c) It increases oxygen competition among fishes
(d) CO2 is mixed in large amount in water
Ans. (a)

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Ques. Water pollution is caused by
(a) Ammonia
(b) Phytoplankton
(c) Industrial effluents
(d) Smoke
Ans. (c)

Ques. Which of the following metal is a water pollutant and causes sterility in human being
(a) As
(b) Mn
(c) Mg
(d) Hg
Ans. (b)

Ques. Which regions of seas/oceans are the most polluted ?
(a) Estuarine
(b) Coastal
(c) Sea depths
(d) Coral reefs
Ans. (b)

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Vishal Arora

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