(b) Characteristics of Rivers in Nigeria: (i) Short courses of some rivers. (ii) flowing of some rivers. (iii) Specific direction of-flow.
(iv) Presence of debris (v) Seasonal fluctuation in volume (vi) Presence of silt in water channels.
(vii) Presence of water hyacinth. (viii) Presence of rapids and waterfalls.
(ix) Shallowness of rivers. (x) Seasonality of rivers. (xi) Muddy appearance in rainy season.

(c) Benefits of Kanji Lake to Nigeria; (i) Source of water for domestic use. (ii) Source of water industries.
(iii) Source of water for livestock farming. (iv) Source of food, e.g. fish.
(v) Habitat for aquatic life, e.g. crocodiles. (vi) The water bodies provide employment for fishermen. (vii) Recreation.
(viii) Transportation (ix) HEP generation. (x) Tourism. (xi) Centre of educational research. (xii) Supplies water for irrigation.