Chemistry Which of the following pollutants is main product of automobile exhaust ? NO Hydrocarbons CO CO2 NO Hydrocarbons CO CO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nucleus of an atom consists of. Proton and Neutron Proton Neutron Electron, Proton and Neutron Proton and Neutron Proton Neutron Electron, Proton and Neutron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2 A and c A and b B and c C and d A and c A and b B and c C and d ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Water Carbon dioxide Oxides of mineral elements Carbonates from soil Water Carbon dioxide Oxides of mineral elements Carbonates from soil ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is an example of noble gas ? Nitrogen Hydrogen Chlorine Helium Nitrogen Hydrogen Chlorine Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called Green house effect Smog Eutrophication None of these Green house effect Smog Eutrophication None of these ANSWER DOWNLOAD EXAMIANS APP
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