46. Which of the following is not a contribution of transportation to economic development?
A. Decreased production
B. Movement of people and commodities
C. Diffusion of ideas
D. National integration
47. Which of the following is not a favourable factor for tourism development in West Africa?
A. Highlands, rocks and beaches
B. Abundance of wildlife
C. Ineffective publicity
D. Improved communication facilities
48. Which of the following is not a feature of wave erosion?
A. Beach
B. Arch
C. Cliff
D. Wave-cut platform
49. Trees in a savanna region develop the following adaptations to enable them survive the long dry season except
A. Shallow roots
B. Long taproots
C. Thick barks
D. Thin leaves
50. One of the major problems of manufacturing industries in Tropical Africa is
A. High demand for manufactured products
B. Inadequate raw material
C. High quality of industrial labour
D. High cost of labour