Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 200 km 100 km 300 km 150 km 200 km 100 km 300 km 150 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical bahaviour of an atom depends upon The number of neutrons in the nucleus The number of protons in its nucleus The number of nucleons in the nucleus The number of electrons orbiting around the nucleus The number of neutrons in the nucleus The number of protons in its nucleus The number of nucleons in the nucleus The number of electrons orbiting around the nucleus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is not a green house gas ? Chlorofluorocarbons CH4 N2O CO2 Chlorofluorocarbons CH4 N2O CO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The liquid waste from kitchens and baths, of residences is known as : Domestic sewage Refuse Storm water Sullage Domestic sewage Refuse Storm water Sullage ANSWER DOWNLOAD EXAMIANS APP
Chemistry The function of sedimentation tank in sewage treatment is to: Remove suspended solids Remove water content Aerate the sewage Disinfect the sewage Remove suspended solids Remove water content Aerate the sewage Disinfect the sewage ANSWER DOWNLOAD EXAMIANS APP
Chemistry The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is hydrogen nitrogen carbon oxygen hydrogen nitrogen carbon oxygen ANSWER DOWNLOAD EXAMIANS APP