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