Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Nitrous oxide Carbon dioxide Sulphur dioxide Chlorofluorocarbons Nitrous oxide Carbon dioxide Sulphur dioxide Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element is Silicon Nitrogen Calcium Oxygen Silicon Nitrogen Calcium Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cinnabar is an ore/mineral of Lead Manganese Mercury Molybdenum Lead Manganese Mercury Molybdenum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major harmful gas emitted by automobile vehicles which causes air pollution is Carbon dioxide Ozone gas Methane Carbon Monoxide Carbon dioxide Ozone gas Methane Carbon Monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Extensively used nitrogenous fertilizer is Urea Ammonium nitrate Ammonium sulphate Nitro-lime Urea Ammonium nitrate Ammonium sulphate Nitro-lime ANSWER DOWNLOAD EXAMIANS APP
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