A. Sewage treatment
B. Manufacturing electricity
C. By checking atomic blasts
D. All of the above
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The correct answer to the question: "Pollution can be controlled by:" is "All of the above".
A. Sewage treatment
B. Manufacturing electricity
C. By checking atomic blasts
D. All of the above
A. Phosphene
B. SiF4
C. Dust
D. Halogens
A. Phosphate rock only
B. Agricultural fertilizers only
C. Sewage and phosphate rock
D. Sewage and agricultural fertilizers
A. Heavy metals
B. Faecal matter
C. Industrial effluents
D. Pollen of aquatic plants
A. Air
B. Water
C. Soil
D. Noise
A. Leaves
B. Flowers
C. Stems
D. Roots
A. Industries
B. Automobiles
C. Home fuel
D. Trees
A. Industrial waste
B. Oil spills
C. Death of marine fauna
D. None of these
A. Always an unfavourble alteration
B. Always a favourable change
C. Rarely a favoruable alteration
D. Usually an unfavourable change
A. Hot water from power plants
B. Hot chemicals from industries
C. Waste from mines
D. Waste from agricultural fields
A. O3
B. CO
C. CO2
D. N2
The correct answer to the question: "Pollution can be controlled by:" is "All of the above".
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