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