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Environment In Relation To Human Welfare - Questions and Answers

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46. Both abiotic and biotic factors of aquatic ecosystem are affected by
A. Air pollution
B. Soil pollution
C. Land pollution
D. Water pollution
Explanation:
47. The following produces carcinogenic effect
A. NO₂
B. SO₂
C. CO₂
D. Unburned hydrocarbons
Explanation:
48. Cancer and cataracts are caused due to exposure to
A. Light
B. Oxygen
C. High radiation
D. Noise pollution
Explanation:
49. Waste produces to refineries and tanning factories cause
A. Air pollution
B. Space pollution
C. Water pollution
D. Land pollution
Explanation:
50. A similar green house condition is present in the
A. Troposphere
B. Stratosphere
C. Ozone layer
D. Atmosphere
Explanation:
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