Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is methane ozone helium oxygen methane ozone helium oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Surface water is a better source of drinking water because it is poor in Arsenic Dust Algae Bacteria Arsenic Dust Algae Bacteria ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ? Acidity Eutrophication Hardness Alkalinity Acidity Eutrophication Hardness Alkalinity ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas liberated in the Bhopal gas tragedy was: Pheynl isocynate Acetylene Methyl isocynate Ethylene Pheynl isocynate Acetylene Methyl isocynate Ethylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical substance present in bones and teeth is Calcium phosphate Calcium chloride Calcium borate Calcium sulphate Calcium phosphate Calcium chloride Calcium borate Calcium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the petroleum wax ? Jojoba wax Carnauba wax Bees wax Paraffin wax Jojoba wax Carnauba wax Bees wax Paraffin wax ANSWER DOWNLOAD EXAMIANS APP
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