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