(a) Distinguish between internal trade and international trade (b) Name four commodities of internal trade in Nigeria, - two originating from the north and ...

(a) Distinguish between internal trade and international trade

(b) Name four commodities of internal trade in Nigeria, - two originating from the north and two from the south

(c) Identify the factors that promote trade between the northern and southern parts of Nigeria

(d) What are the limitations to internal trade in Nigeria?