Multiple Choice
All of the following statements about copper are true EXCEPT
A) price increases have spurred the adoption of substitutes.
B) as supplies have decreased we are now mining lower grade ores.
C) recycled copper now accounts for about one-third of copper used in the United States.
D) copper ore is evenly spread around the earth's crust.
Correct Answer:
Verified
Correct Answer:
Verified
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