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.
Herds resemble slow moving, multicolored forests of bare trees as their horns sway with every step. The AnkoleâWatusi breed is part of the Sanga family of African cattle breeds, which originated over 2,000 years ago from a combination of the Egyptian.
The Nigerian Dwarf Dairy Goat is a miniature goat of West African origin. Its conformation is similar to that of the larger dairy breeds. The maximum height is 21 inches.The average adult weight is about 75 pounds. Nigerian Dwarf Goats are rare.ygmies are bred to be short and cobby in stature with heavy bones. Nigerian Dwarf Dairy Goats are bred to have length of body and fineness of structure in proportion to true dairy character. Color & Temperament Color is one of the big factors that makes breeding Nigerian Dwarf Dairy Goats so popular.