Effects of rainfall on vegetation in Nigeria
(i) High rainfall gives rise to evergreen forest in the South
(ii) Heavy rainfall supports the growth of tali trees in the South
(iii) Low rainfall gives rise to the growth of grasses in the North.
(iv) Low rainfall gives rise to the growth of short deciduous trees in the North
(v) Scanty rainfall in the extreme North gives rise to short scattered grasses.
(vi) Scanty or no rainfall in the extreme North-East gives rise to scrubland.
Uses of vegetation resources
(i) Provide sites for tourism
(ii) Sources of food — fruits and nuts, game.
(iii) Timber for construction purposes
(iv) Wood used as source of fuel
(v) Provision of raw materials for industries.
(vi) Leaves and grasses are used for roofing.
(vii) The roots, barks and leaves are used as medicinal herbs.
(viii) Employment for hunters, lumber-men and forest officers.
(ix) Grasses are used as pasture for animals
(ix) yes, gum Arabic, and tanning are obtained from trees.