By definition,an ore is a mineral rich in valuable metals.To be considered as an ore means that the
A)metals can be economically extracted to yield a profit.
B)metals are extremely valuable.
C)deposit is very rich and abundant in valuable metals.
D)metallic minerals are very abundant.

Question

Quizplus · Accepted Answer

To be considered as an ore, the valuable metals must be economically extractable, meaning that the cost of extracting and processing the metals is lower than the value of the metals obtained. It is not necessary for the metals to be extremely valuable or for the deposit to be very rich; only that they can be extracted profitably. The abundance of metallic minerals is also not a requirement for an ore.

By Definition,an Ore Is a Mineral Rich in Valuable Metals