Chemistry The filter over which sewage is sprinkled is called as Intermittent sand filter Trickling filter Contact bed Percolating filter Intermittent sand filter Trickling filter Contact bed Percolating filter ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main source of lead pollution is from Tobacco Sewage Leaded gasoline Insecticides Tobacco Sewage Leaded gasoline Insecticides ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of major air pollutant is Oxygen Carbon monoxide Carbon dioxide Helium Oxygen Carbon monoxide Carbon dioxide Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which type of radiations are absorbed by the upper layer of the atmosphere? Visible Infrared Radio-waves Ultraviolet Visible Infrared Radio-waves Ultraviolet ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide level in the atmosphere can be reduced by using Low - sulphur fuels More efficient car engines Static electricity to attract it in factory chimneys Catalytic converters in industry Low - sulphur fuels More efficient car engines Static electricity to attract it in factory chimneys Catalytic converters in industry ANSWER DOWNLOAD EXAMIANS APP
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