Category: Pollution Mcqs

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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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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A.Biopollutants
B.Ozone layer
C.Nuclear blast
D.Deforestation
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A.Acidity
B.Metal toxicity
C.Aridity
D.Salinity
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A.Always an unfavourble alteration
B.Always a favourable change
C.Rarely a favoruable alteration
D.Usually an unfavourable change
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A.Minimata disease
B.Osteosclerosis
C.Bright’s disease
D.Hashimoto disease
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A.CO
B.SO2
C.O2
D.NO
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A.Peroxy acetyl nitrate
B.Peroxy acyl nitrite
C.Pyridine aceto-nitrite
D.Peroxy aceto-nitrile
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A.It decreases CO2 concentration
B.It competes O2 to combine with haemoglobin
C.It is carcinogenic
D.It depletes O3 layer
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A.Plastics
B.Iron junks
C.Detergents
D.Glass junks
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