(a) Give two reasons for each of the following practices undertaken by some West African farmers (i) movement of herdsmen and their flocks southwards to the rain forest zone during the dry season (4 marks) 

(ii) Preference for the use of simple farm tools over farm machinery (4 marks)

(b)(i) Identify four problems associated with the movement of herdsmen (4 marks)

(ii) Suggest a solution to each of the problems. [4 marks]