Question

17. If the cost of separating a mineral from waste rock becomes too great, the mineral may no longer be classified as
an ore. This happens because
a. the mineral can no longer be mined at a profit
b. the mineral has lost its usefulness
c. the demand for the mineral has decreased
d. none of the above

Answer 1

Answer:

A. the mineral can no longer be mined at a profit.

Explanation:

Answer 2

In the case when the separating cost a mineral from the wastage cost so this should occur at the time when the mineral should not be longer be mined at the profit.

What is a mineral?

The mineral should arise at a non-organic element or the compound that should be along with the internal structure also the attribute of the composition of the chemical should be considered. Its examples should be mics, quartz, etc. Now in the case when the separating cost a mineral from the wastage cost so it should be too big so option a is correct.

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