Types of Water Pollution. Toxic Substance -- A toxic substance is a chemical pollutant that is not a naturally occurring substance in aquatic ecosystems. The greatest contributors to toxic pollution are herbicides, pesticides and industrial compounds.he sources of water pollution are categorized as being a point source or a non-source point of pollution. Point sources of pollution occur when the polluting substance is emitted directly into the waterway. A pipe spewing toxic chemicals directly into a river is an example.
African Cattle. We supply two breeds of cattle from the Horn of Africa: Ethiopian Boran cattle (which have a pronounced hump) and the Somali cattle (which have a smaller hump).
African buffalo. The African buffalo or Cape buffalo (Syncerus caffer) is a large African bovine. It is not closely related to the slightly larger wild water buffalo of Asia and its ancestry remains unclear. Syncerus caffer caffer, the Cape buffalo, is the typical subspecies, and the largest one, found in South and East Africa.