Heap-leach extraction removes gold from ore by
A) Pouring gravel into holding tanks
B) Spraying cyanide on a pile of ore gravel
C) Roasting ore to release the gold
D) High-pressure spraying of ore
E) Digging the gold out of the mountains
Correct Answer:
Verified
Q40: Rocks are classified according to their
A) Chemical
Q41: In terms of mineral resources, recycling is
Q42: The metal(s) that is/are most important in
Q43: What gas is released in the process
Q44: Sinkholes and caverns can be produced by
A)
Q46: The continental crust of the earth is
Q47: Placer mining involves washing metals, minerals, and
Q48: Where do the toxic gases and leachates
Q49: Rocks are _ in the process called
Q50: _ can lead to mass wasting.
A) Clearcutting
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