BOD stands for:?
A.Biotic oxygen deduction
B.Base of degradation
C.Biotic oxide demand
D.Biological oxygen demand
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B.Base of degradation
C.Biotic oxide demand
D.Biological oxygen demand
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Category: Pollution Mcqs
Carbon monoxide is a major pollutant of:?
A.Water
B.Air
C.Noise
D.Soil
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B.Air
C.Noise
D.Soil
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The major drawback of DDT as a pesticide is that:?
A.Its cost of production is high
B.It is not rapidly degraded in nature
C.Organisms at once developed resistance to it
D.It is significantly less effective than other pesticides
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B.It is not rapidly degraded in nature
C.Organisms at once developed resistance to it
D.It is significantly less effective than other pesticides
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Formation of ozone hole is maximum over:?
A.China
B.Antarctica
C.Europe
D.Africa
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B.Antarctica
C.Europe
D.Africa
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This acts as bioindicator of air pollution:?
A.Alga
B.Lichen
C.Pinus
D.Mustard
E.Fern
B.Lichen
C.Pinus
D.Mustard
E.Fern
It is moderately quiet between:?
A.35-45 db
B.1-5 db
C.40-60 db
D.65-75 db
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B.1-5 db
C.40-60 db
D.65-75 db
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Which one of the following is fungicide??
A.DDT
B.Bordeaux mixture
C.2,4-D
D.DCMU
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B.Bordeaux mixture
C.2,4-D
D.DCMU
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Which of the following air pollutant is carcinogenic??
A.Ethylene
B.3.4 Benzpyrene
C.N2O
D.PAN
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B.3.4 Benzpyrene
C.N2O
D.PAN
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Tajmahal is threatened due to the presence of:?
A.Chlorine/NO2
B.SO2
C.Oxygen/ozone
D.Hydrocarbons
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B.SO2
C.Oxygen/ozone
D.Hydrocarbons
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Presence of SO2 in atmosphere is indicated by:?
A.Mosses
B.Liver worts
C.Lichens
D.Ferms
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B.Liver worts
C.Lichens
D.Ferms
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