A. Jet air crafts only
B. Fire extinguishers and jet air crafts
C. Refrigerators and jet air crafts
D. All of these
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The correct answer to the question: "The CFC pollution sources include:" is "All of these".
A. Jet air crafts only
B. Fire extinguishers and jet air crafts
C. Refrigerators and jet air crafts
D. All of these
A. Phosphene
B. SiF4
C. Dust
D. Halogens
A. Food way
B. Food web
C. Food link
D. Food chain
A. Primary
B. Secondary
C. Both (a) & (b)
D. None of these
A. Channel interception or direct precipitation over the steam rain flow incident
B. Surface run-off
C. Sub-surface flow or inter-flow
D. Base flow
E. All of the above
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. Industries
B. Automobiles
C. Home fuel
D. Trees
A. Industrial waste
B. Oil spills
C. Death of marine fauna
D. None of these
A. O3
B. CO
C. CO2
D. N2
The correct answer to the question: "The CFC pollution sources include:" is "All of these".
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