Chemistry Laughing gas is Nitrogen trioxide Nitrous oxide Nitric oxide Nitrogen pentoxide Nitrogen trioxide Nitrous oxide Nitric oxide Nitrogen pentoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mineral containing both magnesium and calcium is carnallite magnesite dolomite calcite carnallite magnesite dolomite calcite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Phosphorous, Sodium and Nitrogen Calcium, Phosphorous and Potassium Nitrogen, Potassium and Phosphorous Sulphur, Phosphorous and Sodium Phosphorous, Sodium and Nitrogen Calcium, Phosphorous and Potassium Nitrogen, Potassium and Phosphorous Sulphur, Phosphorous and Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following appeared to be with a significant potential for accumulation through food chains ? Parathion DDT Carbary Lindane Parathion DDT Carbary Lindane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a commercial source of energy? Firewood Natural Gas Coal Petroleum Firewood Natural Gas Coal Petroleum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion of Ozone layer is mainly due to Volcanic eruptions Chlorofluorocarbons Aviation fuels Radioactive rays Volcanic eruptions Chlorofluorocarbons Aviation fuels Radioactive rays ANSWER DOWNLOAD EXAMIANS APP
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