Niger is the largest country in Western part of Africa. Two-thirds of the Niger is desert. In an attempt to stop soil erosion, the people in these areas plant trees and grass. The population in this country is waging a battle against the advance of the desert. Agadez is the largest city in Niger. The people live in the dry Sahel region, or in the southwest close to River Niger, where they can possibly plant crops and feed themselves and their herd of animals. Niger's farmers grow onions, rice, beans, and vegetables for export. Niger is one of the world's top producers of Uranium. The capital city is Niamey. The major languages are Teda, French, Hausa, Djerma, Fulani, and Tuareg.