Chemistry The filter over which sewage is sprinkled is called as Contact bed Trickling filter Percolating filter Intermittent sand filter Contact bed Trickling filter Percolating filter 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 Oxygen Carbon monoxide Helium Carbon dioxide Oxygen Carbon monoxide Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which type of radiations are absorbed by the upper layer of the atmosphere? Infrared Ultraviolet Visible Radio-waves Infrared Ultraviolet Visible Radio-waves ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide level in the atmosphere can be reduced by using 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 Static electricity to attract it in factory chimneys Catalytic converters in industry ANSWER DOWNLOAD EXAMIANS APP
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