Question

What is an ore?
A.an object that has been recycled
B.an article of clothing that is made from natural fiber
C.a rock that contains enough of a metal to be worthwhile to extract
D.a fossil fuel that can be burned to generate electricity

Answer 1

a naturally occurring solid material from which a metal or valuable mineral can be profitably extracted.

Answer 2

Answer is:

C. a rock that contains enough of a metal to be worthwhile to extract