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31. Soil loses its fertility due to
A. Water pollution
B. Air pollution
C. Land pollution
D. Noise pollution
Explanation:
32. If concentration of green house gases increases, there is an additional global surface warming called
A. Green house effect
B. Thermal inversion
C. Acid rain
D. Ionizing radiation
Explanation:
33. The reason for water pollution in the densely populated industrial area is
A. Acid rain
B. Smog
C. Smoke
D. Fog
Explanation:
34. Sulphur dioxide dissolves in water and produces
A. Carbonic acid
B. Sulphuric acid
C. Nitric acid
D. Citric acid
Explanation:
35. Increased pollution throughout the world led to the establishment of the world organization known as
A. UNEP
B. NTP
C. NMEP
D. NLEP
Explanation:
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