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CBSE

Subject

General Science

Multiple Choice Questions

1.  

.............. gases absorb long wave (infrared) radiation from the earth and emit it again towards the earth.



    2.  

    The mercury and sodium street lamps light up because of



      3.  

      Addition of suitable impurities into semiconductor, is called



        4.  

        Noise is measure in



          5.  

          Joint SAARC University of eight SAARC Nations has been established in



            6.  

            Who discovered Uranus?



              7.  

              The instrument used for measuring air pressure is called



                8.  

                Glycol is used to manufacture which of the following?



                  9.  

                  The percentage of nitrogen present in ammonium sulphate is



                    10.  

                    The blue revolution is related with 



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