Nigeria is one of the most popular countries in Africa and has a variety of different drainage areas. The three major drainage areas are the Niger-Benue basin, the Lake Chad basin, and the Gulf of Guinea basin. The Niger-Benue basin is the largest and most significant in Nigeria.
Niger-Benue basin is located in the south and covers an area of about 46,923 square miles. It is fed by several rivers, including the Niger, Benue, and Sokoto Rivers, and it drains into the Atlantic Ocean.
The Lake Chad basin is located in the north and covers an area of about 10,000 square miles. It is fed by the Chari and Logone Rivers, which flow into the lake, and it drains into the Atlantic Ocean through the Bight of Benin.
The Gulf of Guinea basin is located in the south and covers an area of about 9,500 square miles. It is fed by the Niger, Sanaga, and Nun Rivers, and it drains into the Atlantic Ocean.
The aforementioned are the three major drainage areas contribute to the health and wellbeing of the people in Nigeria. They provide important water sources for drinking, irrigation, and other essential needs.