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