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Environment In Relation To Human Welfare - Questions and Answers

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6. Acid rain consists of
A. Carbonic acid
B. Sulphuric acid
C. Nitric acid
D. All the three
Explanation:
7. The upper of the earth’s surface is called
A. Atmosphere
B. Stratosphere
C. Ozone layer
D. Troposphere
Explanation:
8. Any undesirable change in physical, chemical or biological characters is known as
A. Respiration
B. Pollution
C. Pollutants
D. Atmosphere
Explanation:
9. Smoke-polluted atmosphere aggravates
A. Dysentry
B. Respiratory diseases
C. Typhoid
D. Heart diseases
Explanation:
10. Percentage of inert gases in the troposphere is
A. 79
B. Trace
C. 20
D. 0.03
Explanation:
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