Geography of Chad lake has shrunk dramatically in the last four decades due to increased water usage from an expanding population and low rainfall. Bordered by Chad, Niger, Nigeria, and Cameroon, Lake Chad currently covers only 1350 square kilometers, down from 25,000 square kilometers in 1963. The Chari and Logone Rivers, both of which originate in the Central African Republic and flow northward, provide most of the surface water entering Lake Chad. Chad is also next to Niger. Located in north-central Africa, Chad stretches for about 1,800 kilometers from its northernmost point to its southern boundary. Except in the far northwest and south,
Nigeria Nigeria The Federal Republic of Nigeria, commonly referred to as Nigeria (), is a federal republic in West Africa, bordering Niger in the north, Chad in the northeast, Cameroon in the southeast, and Benin in the west. Its coast in the south is located on the Gulf of Guinea in the Atlantic Ocean. The federation comprises 36 states and 1 Federal Capital Territory, where the capital, Abuja is located. Nigeria is officially a democratic secular country. Nigeria has been home to a number of ancient and indigenous kingdoms and states over the millennia. The modern state originated from British colonial