Green fufler is used against which type of pollution??
A.Air
B.Water
C.Soil
D.Noise
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B.Water
C.Soil
D.Noise
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Category: Pollution Mcqs
The atomspheric UV radiations are absorbed in the zone called:?
A.Troposphere
B.Stratosphere
C.Mesosphere
D.Thermosphere
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The ozone layer or ozone shield is a region of Earth’s stratosphere that absorbs most of the Sun’s ultraviolet radiation. It contains high concentration of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere.
Which of the following is a biodegradable pollutant??
A.Sewage
B.Asbestos
C.Plastic
D.All of these
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B.Asbestos
C.Plastic
D.All of these
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Ozone hole is refers to as:?
A.Hole in ozone layer
B.Decrease in the ozone layer in troposphere
C.Decrease in thickness of ozone layer in stratosphere
D.Increase in the thickness of ozone layer in troposphere
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B.Decrease in the ozone layer in troposphere
C.Decrease in thickness of ozone layer in stratosphere
D.Increase in the thickness of ozone layer in troposphere
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The enrichment of water by nutrients is:?
A.Mineralization
B.Oligotrophication
C.Eutrophication
D.All of these
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B.Oligotrophication
C.Eutrophication
D.All of these
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Most harmful heavy metals causing water pollution:?
A.Pb, Hg, Cr, Cd
B.P,Mn,B,Mg
C.N,K,Mo
D.Zn,Mo,Mg,Ag
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B.P,Mn,B,Mg
C.N,K,Mo
D.Zn,Mo,Mg,Ag
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BOD is the amount of oxygen:?
A.Present in water
B.Utilized by organisms in water
C.Utilized by micro-organisms for decomposition
D.Demanded by the producers for the production of food
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B.Utilized by organisms in water
C.Utilized by micro-organisms for decomposition
D.Demanded by the producers for the production of food
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If there were no CO2 in the earth’s atmosphere, the temperature of earth’s surface would have been:?
A.same as present
B.Less than the present
C.Higher than the present
D.Dependent on the amount of O2 in the atmosphere
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B.Less than the present
C.Higher than the present
D.Dependent on the amount of O2 in the atmosphere
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Which one is not dangerous for life??
A.Biopollutants
B.Ozone layer
C.Nuclear blast
D.Deforestation
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B.Ozone layer
C.Nuclear blast
D.Deforestation
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Prolonged liberal irrigation of agricultural fields is likely to create the problem of:?
A.Acidity
B.Metal toxicity
C.Aridity
D.Salinity
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B.Metal toxicity
C.Aridity
D.Salinity
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