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CBSE
Class 8 Science
Pollution Of Air And Water
Quiz 1
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Which gas is the major pollutant of air?
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Carbon monoxide
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Nitrogen
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Oxygen
0%
Propane
Explanation
Carbon monoxide
The increase in concentration of which gas is not responsible for Global Warming?
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Sulphur dioxide
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Nitrogen
0%
Carbon dioxide
0%
Methane
Explanation
Nitrogen
In which year Ganga Action Plan was launched?
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1980
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1984
0%
1982
0%
1985
Explanation
1985
What radiations are absorbed by CO2?
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Ultrared radiations
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Infrared radiations
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Ultraviolet radiations
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None of these
Explanation
Infrared radiations
Which element is present in the exhaust of automobiles?
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Lead
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Calcium
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Chromium
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Magnesium
Explanation
Lead
The phenomenon of marble cancer is due to
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soil particles
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fog
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CFCs
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acid rain
Explanation
acid rain
The solid or liquid particles dispersed in the air are called
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oxides
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acids
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hydrocarbons
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aerosols
Explanation
aerosols
The type of pollution which is likely to affect Taj Mahal in Agra to a greater extent is
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air pollution
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soil pollution
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water pollution
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noise pollution
Explanation
air pollution
The major causes of air pollution include
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burning of coal and petroleum
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afforestation
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deforestation
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recycling of paper
Explanation
burning of coal and petroleum
Bhopal tragedy was caused due to
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air pollution
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emission of poisonous gas
0%
water pollution
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leakage of poisonous gas
Explanation
leakage of poisonous gas
Which of the following contents is most harmful to aquatic animals?
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Heavy metal ions
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Sodium ions
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Potassium ions
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Chloride ions
Explanation
Heavy metal ions
Water containing high salt concentration can be purified by
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boiling
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UV irradiation
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filtration
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reverse osmosis
Explanation
reverse osmosis
Which of the following is a non-biodegradable pollutant?
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Sulphur dioxide
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DDT
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Nitrogen oxide
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Hydrogen oxide
Explanation
DDT
Which of the following is major source of water pollution?
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Industrial wastes
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Untreated sewage
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Use of fertilisers
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Toxic metals
Explanation
Untreated sewage
Which of the following techniques of irrigation should be used to save water?
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Water wheel
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Canal irrigation
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Drip irrigation
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Lift irrigation
Explanation
Drip irrigation
Which of the following compound causes the depletion of the ozone layer?
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Sulphur oxide
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Carbon dioxide
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chlorofluorocarbons
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None of the above
Which of the following substance is responsible for acid rain?
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Sulphur oxide
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Carbon monoxide
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Both I and II
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None of the above
Which of the following compound is used for cooking that releases harmful gases?
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Charcoal
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Wax
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Both I and II
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None of these
Which of the following can be considered as an alternate source of energy that can reduce air pollution?
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Wind Energy
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Thermal Power Plant
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Both I and II
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None of these
Which of the following is a source of water pollution?
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Sedimentation
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Boiling
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Domestic Sewage
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None of these
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