Chemistry Which one of the following is used for dating very old objects of archaeological importance? Carbon-14 Phosphorus-31 Radium Tritium Carbon-14 Phosphorus-31 Radium Tritium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The function of skimming tank in sewage treatment is to remove Gritty substances Inorganic substances Oil and fatty substances Suspended solids Gritty substances Inorganic substances Oil and fatty substances Suspended solids ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main constituent of natural gas is Propane Ethane Methane Butane Propane Ethane Methane Butane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion in Ozone layer is caused by ________ . Methane Carbon dioxide Chlorofluorocarbons Nitrous oxide Methane Carbon dioxide Chlorofluorocarbons Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry A detergent is a Drug Catalyst Cleansing agent Soap Drug Catalyst Cleansing agent Soap ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following caused radioactive pollution along the coast of Kerala ? Thorium Zinc Plutonium Radium Thorium Zinc Plutonium Radium ANSWER DOWNLOAD EXAMIANS APP
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