(a) On an outline map of Nigeria locate and name (i) the source areas and the destinations of two named major items of internal trade, indicate by an arrow ...

(a) On an outline map of Nigeria locate and name
(i) the source areas and the destinations of two named major items of internal trade, indicate by an arrow the direction of movement of each commodity. (ii) one important town in each area

(b) Outline four factors that have favoured the development of internal trade in Nigeria