Theory question 105
Nigeria: Physical SettingFor candidates in Nigeria: (a) Draw an outline map of Nigeria. On the map, show and name: (i) three vegetation belts; (ii) one important town in each belt. (b) Highlight three effects of rainfall on vegetation in Nigeria. (c) State two uses of vegetation resources in Nigeria
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(a) Mangrove swamp forest (Port Harcourt, Warri); tropical rain forest (Benin City, Ibadan, Enugu); Guinea savanna (Ilorin, Makurdi, Abuja); Sudan savanna (Kano, Sokoto, Kaduna); Sahel savanna (Maiduguri, Nguru); montane vegetation (Jos, Obudu).
(b) Heavy rainfall in the south gives evergreen forest with tall trees; rainfall decreases northward so vegetation changes to savanna and grasses get shorter; low rainfall in the far north gives short grass and thorny shrubs (Sahel); seasonal rainfall makes savanna trees deciduous; length of the rainy season decides how dense the vegetation is.
(c) Timber and fuelwood; pasture for livestock; food, fruits and medicinal herbs; raw materials for industries; protect soils; tourism and wildlife habitat.
Draw the belts from the coast northward in the correct order.