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Which of the following employ downward movement of ore due to gravity?

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Gravity separation

Froth floatation

Blast furnace

Bessemer's coverter

answer is A, C.

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Detailed Solution

To separate particles based on weight and density, the gravity separation and blast furnace is used.

Blast furnaces are used to treat lead, copper, and other metals as well as to create pig iron from iron ore for use in the production of steel it also employs downward movement of ore due to gravity.

Hence the option A, C is correct

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