Multiple Choice
What is the difference between a rock and an ore?
A) Rocks have varied chemical composition; ores contain a large concentration of a particular mineral.
B) Rocks contain only nonmetallic minerals; ores contain only metallic minerals.
C) Rocks are easily accessible but always non-profitable to extract; ores are inaccessible but always profitable to extract.
D) Rocks are not good conductors of heat and electricity; ores are good conductors of heat and electricity.
Correct Answer:
Verified
Correct Answer:
Verified
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