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Environment In Relation To Human Welfare - Questions and Answers

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1. The compounds present in the coal are
A. Carbon
B. Sulphur
C. Nitrogen
D. All the three
Explanation:
2. Epidermis and mesophyll of the leaves are damaged by the acids in
A. Fog
B. Smog
C. Soot
D. Smoke
Explanation:
3. The ozone layer extends from the earth surface upto
A. 5 to 10 Km
B. 15 to 30 Km
C. 25 to 35 Km
D. 30 to 60 Km
Explanation:
4. The surfaces of plants are blackened by
A. Smoke
B. Smog
C. Fog
D. Soot
Explanation:
5. Dust particle from the combustion of coal and oil form
A. Radioactive dust
B. Smog
C. Soot
D. Smoke
Explanation:
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