Question

write a brief note on smelting processes.​

Answer 1

Smelting is the process of extracting metal by heating metal oxide with suitable reducing agent such as carbon, hydrogen etc. Smelting is done at high temperature.

In the way

Answer 2

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Marginal information are the peripheral information on the edge of the map that provides useful information about the map to the map user.

The Scale Note is a representative fraction, which gives the ratio of map distance to the corresponding distance on the earth surface