(a) State three characteristics of a good plain seam.
(b) State three causes of food spoilage.
(c) Complete the table below by filling in the blank spaces
(d) The headmaster of your school has asked you to design and construct a Kumasi Ventilated Improved Pit (KVIP) toilet for the school
(i) List three building materials you will use for making the structure
(ii) List four tools for constructing the walls.