(a) Draw an outline map of Nigeria. On the map, show and name;
(i) one area of sparse population;
(ii) one area of moderate population;
(iii) one area of dense population;
(iv) one town in (a)(i) above

(b) Outline three factors responsible for the dense population in the area shown in (a) (iii) above.

(c) Highlight three problems of dense populatiion in (a)(iii) above.