Air and Water Pollution
The large number of organisms can die if there is:
low level of oxygen
low level of carbon dioxide
low level of methane
low level of ethane
low level of oxygen
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The air condition equipment, leaking refrigerators, spray cans and burning of plastic foams releaseA. carob-oxides
B. herbicides
C. pesticides
D. chlorofluorocarbon
The kind of land pollution in which salt content rises and land becomes unsuitable for farming is called
A. carbonization of soil
B. deoxygenating of soil
C. salinization of soil
D. oxygenation of soil
The ‘global warming’ leads to:
A. low level of oxygen
B. high level of oxygen
C. floods and droughts
D. rain forests
The major types of pollution includes
A. air pollution
B. land pollution
C. water pollution
D. all of above
The pollution which occurs by poor disposal of waste and rubbish is classified as:
A. visual pollution
B. noise pollution
C. land pollution
D. thermal pollution
The sediments in water blocks the:
A. sunlight
B. carbon dioxide
C. ethane
D. methane
The reduce, reuse and recycle principle by which wastes can be reduced is classified as:
A. waste organizer principle
B. waste management principle
C. RE principle
D. 3R principle
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