(a) Draw a sketch map of Africa and on it mark and name the following dams:
(i) Kariba
(ii) Aswan
(iii) Cabora Bassa
(iv) Akosombo
(v) Owen

(b) With reference to specific examples in Africa, discuss the importance of hydro-electric power projects to the economy

(c) Explain the problems facing the development of hydro-electric power projects in Tropical Africa.