(3b)
(i)It makes movement of people easier and faster
(ii)It generates revenue for government
(iii)It provide employment opportunities for the people. eg pilot, crews,
(iv)It aids commercial activities

(3c)
(i)Presence of sandbars and sandpit that block the streams or rivers
(ii)Problem of port congestions
(iii)inadequate infrastructural facilities and lack of dredging of Calabar River.
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(4ai)
(i) Nigeria
(ii) Ghana

(4aii)
(i) senegal
(ii) mali
(iii) togo

(4aiii)
Cape Verde

(4aiv)
Tabulate.
-country and capital-

(i) Nigeria –> Abuja
(ii) Ghana –> Accra
(iii) senegal –> dakar
(iv) mali. –> bamako
(v) togo –> lome
(vi)Cape Verde. –> praia

(4b)
(i)it has helped Nigeria to trade freely with member countries
(ii)cultural integration
(iii)it has linked Nigeria with member states in the promotion of sports
(iv)development of common market.

(4c)
(i)Language barrier
(ii)fear of domination
(iii)political instability
(iv)difference in currency
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(6ai)
Settlement: is a place where people live. A settlement may be as small as a single house in a remote area or as a large as a mega city (a city with over 10 million residents).

(6aii)
(i)isolated settlement
(ii)dispersed settlement
(iii)nucleated settlement
(iv)linear settlement

(6b)
(i)Adequate water supply
(ii)Fertilize soil
(iii)Defence
(iv)Good communication network.

(6c)
(i)Water supply; water is essential for human survival and agricultural activities.

(ii)Relief; the availability of broad flat land such as floodplains promote agricultural activities.

(iii)Soils; fertility of soils also another considerations for agricultural activities

(iv)Shelter; which are sheltered from natural elements. Windswept highland with harsh cold climate are conducive for settlement.

(v)Defence; Threat from enemies and predatory animals drove people to live together for protection.
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(8a)
(i)it is faster than any other means of transportation eg road, rail, etc
(ii)it is more secure to transport valuable items than road
(iii)air routes do not require maintenance
(iv)it covers lower distance than others eg road,water,and rail
(v)it is used for time saving transportation

(8b)
(i)Slow: Speed of Inland water transport is very slow and therefore this mode of transport is unsuitable where time is an important factor in nigeria.

(ii)Limited Area of Operation: It can be used only in a limited area which is served by deep canals and rivers.

(iii)Unsuitable for Small Business: Inland water transport by rivers and canals is not suitable for small traders, as it takes normally a longer time to carry goods from one place to another through this form of transport in nigeria.

(iv)Unreliable: The inland water transport by rivers is unreliable. Sometimes the river changes its course which causes dislocation in the normal route of the trade in nigeria.

(v)Seasonal Character: Rivers and canals cannot be operated for transportation throughout the year as water may freeze during winter or water level may go very much down during summer in nigeria.