Zambia main local language, especially in Lusaka, is Nyanja (Chewa), followed by Bemba. In the Copperbelt Bemba is the main language and Nyanja second. Bemba and Nyanja are spoken in the urban areas in addition to other indigenous languages which are commonly spoken in Zambia. These include Lozi, Kaonde, Tonga, Lunda and Luvale, which feature on the Zambia National Broadcasting Corporation (ZNBC)'s local languages section. The total number of languages spoken in Zambia is 73. The process of urbanisation has had a dramatic effect on some of the indigenous languages, including the assimilation of words from other indigenous languages and English.
Ecoregions of Zambia artificial reservoir), together with the smaller lakes such as Mweru Wantipa and Itezhi-Tezhi reservoir, and numerous lagoons and swamps cover about 5% of Zambia. Together with their associated rivers, the WWF categorises these freshwater bioregions in Zambia: Zambezi Basin made up of (not shown on the map): Ecoregions of Zambia The biomes and ecoregions in the ecology of Zambia are described, listed and mapped here, following the World Wildlife Fund's Global 200 classification scheme for terrestrial ecoregions, and the WWF freshwater bioregion classification for rivers, lakes and wetlands. Zambia is in the Afrotropic biogeographic realm (or ecozone) of the scheme.