4. With the aid of suitable diagrams describe the appearance and process of formation of any two of the following landforms

(a) Rock pedestal (b) Depression (c) Barchan (d) Inselberg 
 

(a) Outline any four factors that can influence climate of a place

(b) In what three ways does climate affect man 
 

(a) State two advantages of industrialization in Nigeria.
(b) Explain four problems that retard industrialization in Nigeria.
(c) In four ways, describe how the problems in (b) above can be solved.

Describe desert encroachment under the following headings

(a) causes (b) areas liable (c) effect (d) methods of prevention 
 

(a) State two objectives of the Economics Community of West African States (ECOWAS).
(b) Identify four problems hindering the achievement of the objectives of ECOWAS.
(c) In what four ways can the problems identified in (b) above be solved?