Extensive development of dairy farming in the dairy belt of North America has been possible due to the presence of a combination of physical and economic factors. The region receives a rainfall varying between 55 and 125 cm. The rainfall efficiency is further increased by relatively lower temperature ranging between 18° and 24°C. The cattle yield more milk in a cool climate and the milk can also be kept for a longer time at lower temperature.
China is the world’s largest producer of Aluminum smelter. Aluminium smelting is the process of extracting aluminium from its oxide, alumina, generally by the Hall-Héroult process.
Forested wetlands are called as swamps. They are located all around the world. Freshwater swamps form along large lakes and rivers. Saltwater swamps are found along tropical and sub tropical coastlines.
EXAMIANS