Category: Pollution Mcqs

A.Biogas generation
B.Biological oxygen demand
C.Biosynthetic path way
D.Fermentation
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A.Natural balance of our ecological environment
B.Natural gaseous cycle
C.Natural geochemical cycle
D.Natural flora of a place
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A.Industrial wastes poured into water bodies
B.Extent to which water is polluted with organic compounds
C.Amount of carbon monoxide inseparably combined with haemoglobin
D.Amount of oxygen needed by green plants during night
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A.August, 8th
B.August, 9th
C.August, 6th
D.August, 4th
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A.Chlorine
B.Chloramines
C.Phenyl
D.Ozone
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A.Biodegradable pollutant
B.Green house gas
C.Non-degradable pollutant
D.None of the above
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A.SO2
B.O2
C.H2S
D.CO
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A.0.01 ppm
B.0.001 ppm
C.0.5 ppm
D.0.75 ppm
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A.Make oxygen molecules unavailable to aquatic life
B.Make nitrates unavailable to aquatic life
C.Prevent precipitation
D.Stop the water cycle
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A.Organic matter
B.Microbes
C.Both (a)