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