A. Green house effect
B. Radioactive effect
C. Ozone layer effect
D. Solar effect
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The component of a living cell affected by the pollutant SO2 is:
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Some reliable indicators of air pollutants (SO2 and noxious gases) are:
A. Nucleus
B. All cell membrane system
C. Cell wall
D. Plasmodesmata
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Water pollution is caused by:
A. Ferns and Cycas
B. Green algae and aquatic liverworts
C. Lichens and mosses
D. Neem’ tree and Eichhornia
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This acts as bioindicator of air pollution:
A. Decay of bodies of aquatic organisms
B. Rain
C. Growth of phytoplankton
D. Industrial effluents
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The atmospheric pollution is caused by:
A. Alga
B. Lichen
C. Pinus
D. Mustard
E. Fern
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The percentage of run off water reaching the ocean and evaporation into atmosphere is respectively:
A. O3
B. CO
C. CO2
D. N2
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Air pollution is maximum caused by:
A. 27 & 73
B. 73 & 27
C. 37 & 63
D. 63 & 37
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Sewage water can be purified for recycling with the action of:
A. Sewage and industrial effluents
B. Household detergents and pesticides
C. Automobile exhausts and chemicals from industry
D. Sewage and pesticides
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Photochemical smog is related to the pollution of:
A. Aquatic plants
B. Penicillin
C. Micro-organisms
D. Fishes
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