Chemistry The depletion in Ozone layer is caused by ________ . Nitrous oxide Chlorofluorocarbons Carbon dioxide Methane Nitrous oxide Chlorofluorocarbons Carbon dioxide Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful Solar infrared radiation SO2 in the air Solar ultraviolet radiation CO2 in the air Solar infrared radiation SO2 in the air Solar ultraviolet radiation CO2 in the air ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ‘Green House effect’ is produced due to the presence of excess amount of Methane Nitrogen dioxide Sulphur dioxide Carbon monoxide Methane Nitrogen dioxide Sulphur dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bauxite is an alloy of which of the following metals ? Silver Iron Tin Aluminium Silver Iron Tin Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal used to galvanise iron to protect it from rusting is Lead Zinc Chromium Antimony Lead Zinc Chromium Antimony ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of neutrons in an atom of hydrogen is Three Zero One Two Three Zero One Two ANSWER DOWNLOAD EXAMIANS APP
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