(a) On an outline map of Nigeria, locate and name:
(i) the Niger-Benue trough; (ii) Rivers Niger, Benue, Gongola and Donga; (iii) one confluence town in the region.

(b) Write a geographical essay on the physical characteristics of the Niger-Benue trough.

(c) Outline four ways in which the economic activities in the Niger-Benue trough are related to its physical characteristics.