WORLD HISTORY

Detailed explanation-1: -With arable meaning suitable for growing crops, and ecosystem meaning the sum of the biological and physical characteristics of an area, this simply means that the Niger River gave the people of West Africa a place where they could live and water their animals.

Detailed explanation-2: -Niger River tributaries include the Sokoto, Kaduna, Benue, and Bani rivers. The Niger River flows through major cities such as Tembakounda, Bamako, Timbuktu, Niamey, Lokoja, and Onitsha.

Detailed explanation-3: -The Niger River is the principal river of western Africa, extending over 2500 miles (about 4000 km). It runs in a crescent through Guinea, Mali, Niger, on the border with Benin and then through Nigeria, discharging through a massive delta, known as the Oil Rivers, into the Gulf of Guinea.

Detailed explanation-4: -It runs in a crescent shape through Mali, Niger, on the border with Benin and then through Nigeria, discharging through a massive delta, known as the Niger Delta (or the Oil Rivers), into the Gulf of Guinea in the Atlantic Ocean. The Niger is the third-longest river in Africa, exceeded by the Nile and the Congo River.