Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . Gamma rays Ultraviolet rays (UV) X–rays Infra-red (IR) Gamma rays Ultraviolet rays (UV) X–rays Infra-red (IR) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron and manganese present as pollutants in water cannot be removed by________ Ion exchange process Lime soda process or manganese zeolite process Oxidation followed by settling and filtration Chlorination Ion exchange process Lime soda process or manganese zeolite process Oxidation followed by settling and filtration Chlorination ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a naturally occuring noble gas Potassium Argon Boron Sodium Potassium Argon Boron Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry An important green-house gas other than methane being produced from the agricultural fields is Arsine Nitrous oxide Ammonia Sulphur dioxide Arsine Nitrous oxide Ammonia Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Where does the oxygen that keeps us alive come from? Carbonates absorbed from soil Oxides of minerals Carbon dioxide Water Carbonates absorbed from soil Oxides of minerals Carbon dioxide Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry When water itself combines chemically with some element or mineral it is called Carbonation Oxidation Hydration Desilication Carbonation Oxidation Hydration Desilication ANSWER DOWNLOAD EXAMIANS APP
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