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