INTRODUCTION:

                  SYNTHETIC FIBERS AND PLASTICS     

                     METALS  AND NON- METALS metal

                      DIGESTIVE SYSTEM    

                            COAL

                     COMBUSTION AND FLAME    

  VERY SHORT QUESTION 1)    Who discovered the presence of cell?  Ans. Antoni Van Leeuwenhoek.

LIVING AND NONLIVING SHORT QS  ( LIVING AND NONLIVING) Mention five objects which are non-living