(a) Draw an outline map of Nigeria. On the map. mark and name: (i) the railway line from Ibadan to Kano; (ii) the main road from Port Harcourt to Lagos.
(b) Highlight four contributions of transportation to the economic development of Nigeria.
(c) Outline three problems limiting rail transportation in Nigeria.

(a) Describe the significance of minerals as an environmental resource

(b) Highlight three major problems resulting from the exploitation of mineral resources 

(a) Explain four ways in which a fall in birth rate can be beneficial to a country

(b) What four problems can arise from a fall in the birth rate of a country?

(c) In what four ways can the birth rate of such a country be increased?
 

(a) Explain any five functions which urban centres perform for rural areas

(b) What four problems may limit the performance of the functions identified in (a) above 
 

(a) In what fours ways is water transportation important in international trade?

(b) Highlight four limitations of water transpiration

(c) How can these limitations be overcome?