Placer mining involves to extract minerals.
A. Removing the top layer of earth.
B. Tunneling...
Physics, 06.10.2020 14:01 puchie1225
Placer mining involves to extract minerals.
A. Removing the top layer of earth.
B. Tunneling under the earth.
C. Dredging sediments from the water bottom.
D. None of the above
(It’s either C or D, but I don’t know which one)
Answers: 2
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