Explanation:
(a) Manufacturing industry involves the turning of raw materials into new products by mechanical or chemical processes at home or in the factory.
(b) The characteristic features of manufacturing industries in tropical African countries:
(i) Importation of skilled labour
(ii) Imported raw materials
(iii)They are labour intensive
(iv) They are largely small-scaled
(v) The industries are concentrated in few locations
(c) Four reasons why countries embark on industrialization include:
(i) To reduce over dependence on imported goods
(ii) It acts as a source of revenue
(iii) To generate employment
(iv) To improve the standard of living.