Effect of pollution is first marked on:?
A.Micro-organisms
B.Green vegetation of an area
C.Food crop
D.None of these
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B.Green vegetation of an area
C.Food crop
D.None of these
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Category: Pollution Mcqs
5th June is celebrated as:?
A.World forest day
B.World environment day
C.World red cross day
D.World food day
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B.World environment day
C.World red cross day
D.World food day
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The ground water pollution is due to excess of:?
A.DDT is a growth retardant
B.Pesticides
C.Minerals
D.Carbon deposit
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B.Pesticides
C.Minerals
D.Carbon deposit
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Greenhouse effect is due to:?
A.CO
B.CO2
C.NO2
D.PO4
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B.CO2
C.NO2
D.PO4
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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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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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