How does a mineral resource differ from an ore deposit?
A. An ore deposit occurs naturally, whereas a mineral resource does not.
B. Ore deposits are economically extractable, whereas mineral resources are not.
C. Mineral resources are concentrations of metals, whereas ore deposits are not.
D. Ore deposits are concentrations of metal, whereas mineral resources do not contain metals.
E. A mineral resource occurs naturally, whereas an ore deposit does not.
Answer: D. Ore deposits are concentrations of metal, whereas mineral resources do not contain metals.
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