Q781
Open questionWhich one of the following metals pollutes the air of a city having large number of automobiles?
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Q782
Open questionPollutant from motor car exhaust that causes mental disease is
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Q783
Open questionThe most common cause of pollution of air is
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Q784
Open questionParticulates (< 1 µm size) remaining suspended in air indefinitely and transported by wind currents are called
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Q785
Open questionMercury is emitted into air by
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Q786
Open question'Acid rain' is caused due to air pollution by
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Q787
Open questionGas released during Bhopal tragedy was :
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Q788
Open questionThe filter over which sewage is sprinkled is called as
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Q789
Open questionMain source of lead pollution is from
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Q790
Open questionAn example of major air pollutant is
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Q791
Open questionWhich type of radiations are absorbed by the upper layer of the atmosphere?
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Q792
Open questionSulphur dioxide level in the atmosphere can be reduced by using
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Q793
Open questionThe term 'brown air' is used for
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Q794
Open questionThe sewage obtained from water closets and urinals is known as
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Q795
Open questionWhich one amongst the following is not a Green House gas?
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Q796
Open questionWhich of the following is not a greenhouse gas ?
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Q797
Open questionWhich is abundant in Gobar gas?
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Q798
Open questionConcentration of a material which is lethal to 50% animal is called
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Q799
Open questionThe major harmful gas emitted by automobile vehicle which causes air pollution is
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Q800
Open questionThe major harmful gas emitted by automobile vehicles which causes air pollution is
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