give me defination of smelting geography class 8 ch 5or 6 ncert
Answers
Answer:
Explanation:
Smelting, process by which a metal is obtained, either as the element or as a simple compound, from its ore by heating beyond the melting point, ordinarily in the presence of oxidizing agents, such as air, or reducing agents, such as coke. The first metal to be smelted in the ancient Middle East was probably copper (by 5000 BCE), followed by tin, lead, and silver. To achieve the high temperatures required for smelting, furnaces with forced-air draft were developed; for iron, temperatures even higher were required. Smelting thus represented a major technological achievement. Charcoal was the universal fuel until coke was introduced in 18th-century England. Meanwhile, the blast furnace had achieved a high state of development.
Answer:
the extraction of metal from its ore by a process involving heating and melting