a) Draw a sketch map of Nigeria. On the map. show and name one area with:
(i) Mangrove swamp vegetation: (ii) Rain forest vegetation: (iii) Guinea savanna vegetation: (iv) Sudan savanna vegetation. 
(b) Name three types of trees found in the forest zone of Nigeria. 
(c) Explain four contributions of forest vegetation to the economic development of Nigeria.

 (a) Highlight any three characteristics of manufacturing industries in Tropical Africa

(b) State four ways by which manufacturing industries contribute to the economic development of Tropical Africa

(c) Outline four problems facing industrial development in the region

(a) Describe five factors responsible for the low volumes of trade between Nigeria and the other African countries

(b) Suggest five ways of increasing the volume of trade between Nigeria and the other countries in Africa
 

Differentiate between the practice of agriculture in the sorest and savanna regions of Nigeria under the following headings:

(a) Favourable factors

(b) Products

(c) Economic importance 
 

(a) Draw a map of Nigeria and on it, show the
(i) Rivers Kaduna, Cross and Ogun
(ii) Source area of each river in (a) (i) above

(b) Describe any four characteristics of rivers in Nigeria

(c) In what four ways are rivers useful to the economy of Nigeria?