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