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Environment In Relation To Human Welfare - Questions and Answers

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51. Th3e gas continuously absorbed by algal bloom is
A. CO
B. O₂
C. NO
D. CO₂
Explanation:
52. The indictment of ecosystem with nutrients is known as
A. Green house effect
B. Global warming
C. Eutrophication
D. Algal bloom
Explanation:
53. Eutrophication is a kind of
A. Water pollution
B. Air pollution
C. Land pollution
D. Space pollution
Explanation:
54. Chlorofluorocarbons are produced by
A. Atomic plants
B. Refrigerators
C. Toilets
D. Fossil fuels
Explanation:
55. Acid rain is formed by
A. Sulphuric acid
B. Nitric acid
C. Sulphuric and Nitric acids
D. Hydrochloric acid
Explanation:
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