name types of abrasives.
  
                          The expected  answer to question 2 is as given below:
(a)                            Differences between softwood  and hardwood
                           Softwood                                                        Hardwood
Softwood                                                        Hardwood
                            - Leaves are  needle-like                                  -  Leaves are broad
                            - Evergreen                                                      -  Deciduous
                            - Naked seeds                                                 -  Enclosed seeds
                            - Cells are  non-pored                                       -  Cells are pored                                       
                           (b)        (i)         Sketch  of Butt Hinge
                           
                           
                           
                           
                           
                           
                           
                           
                          
                            
                              - Naming suitable screw for  Butt Hinge
-           Countersunk headscrew
                           (c)        (i)         Reasons  for Sanding Wood Surfaces
                                                              -           To remove unwanted marks
                                      -           To make the surface smooth
                                      -           To remove stains.
                                       (ii)        Naming of types of Abrasives
                                                              -           Flint
                                      -           Garnet
                                      -           Emery cloth
                                      -           Glasspaper
                                      -           Sandpaper