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Environment In Relation To Human Welfare - Questions and Answers

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66. The rate of oscillation is measured in terms of
A. Km/hour
B. Cycles/second
C. Joule/sec
D. meter/second
Explanation:
67. Emphysema is a
A. Respiratory diseases
B. Coronary heart diseases
C. Rheumatic heart diseases
D. Whooping cough
Explanation:
68. Decibel is named after
A. Sir Alfred Bell
B. Went
C. Darwin
D. Fisher
Explanation:
69. The pollutant that can be recycled through natural or artificial waste treatment mechanism is
A. Aluminium cans
B. Mercuric chloride
C. Pesticides
D. Domestic sewage
Explanation:
70. Long chain phenolic chemicals and detergents are
A. Degradable pollutants
B. Non-degradable pollutants
C. Air pollutants
D. Noise pollutants
Explanation:
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