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.
The amount of insolation received varies from latitude to latitude. The Regions within the equator and 40° N and S latitudes are energy surplus regions because they receive abundant sunlight and hence more heat will be gained than lost.The Regions beyond 40° N and S latitudes are energy deficit regions because they lose more heat than that gained from sunlight.
Etchplain is a plain where the bedrock has been subject to considerable subsurface weathering is called an Etchplain. The process of the formation of Etchplains is called Etchplantation.Flared slope is a rock-wall with a smooth transition into a concavity at the foot zone is called a Flared zone. They are found in a variety of climates. They are most common in granitic rocks.