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Environment In Relation To Human Welfare - Questions and Answers

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76. Industrial workers must be educated to wear
A. Ear muffs
B. Mouth muffs
C. Helmets
D. Gloves
Explanation:
77. The damage caused by this pollution is irreversible in man
A. Water pollution
B. Land pollution
C. Air pollution
D. Noise pollution
Explanation:
78. The percentage of nitrogen in the troposphere is
A. 79
B. 20
C. 0.03
D. Trace
Explanation:
79. Thermal inversions occur during
A. Summer
B. Autumn
C. Winter
D. Spring
Explanation:
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