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 Tobacco Leaded gasoline Sewage Insecticides Tobacco Leaded gasoline Sewage Insecticides ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of major air pollutant is Oxygen Carbon dioxide Helium Carbon monoxide Oxygen Carbon dioxide Helium Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which type of radiations are absorbed by the upper layer of the atmosphere? Infrared Visible Radio-waves Ultraviolet Infrared Visible Radio-waves Ultraviolet ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide level in the atmosphere can be reduced by using 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 Low - sulphur fuels Catalytic converters in industry ANSWER DOWNLOAD EXAMIANS APP
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