Write a geographical account of Cross River plains under the following headings:  (a) climate; (b) economic activities: (c) problems of development.

(a) State the difference between erosion and mass movement
(b) List four agents responsible for modifying landforms
(c) Outline three factors that influence mass movement

(a) List three characteristics of metamorphic rocks
(b) Describe three modes of formation of metamorphic rocks
(c) Outline three economic benefits of rocks.

(a) With the aid of annotated diagrams, describe the characteristics of various stages of river course
(b) List three ways by which rivers are beneficial

(a) List five sources of water pollution
(b) Highlight five measures that can be taken to control water pollution