Chad has a few areas: a desert zone in the north, a parched Sahelian belt in the middle and a progressively prolific Sudanian Savanna zone in the south. Lake Chad, after which the nation is named, is the biggest wetland in Chad and the second-biggest in Africa. The capital N'Djamena is the biggest city. Chad's legitimate dialects are Arabic and French. Chad is home to more than 200 distinctive ethnic and etymological gatherings. The most well known religion of Chad is Islam (at 55%), trailed by Christianity (at 40%).