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5. Why was placer mining the most widely used method of mining for gold?
Placer mining was affordable to a large number of prospectors.
Placer mining required cooperation between miners and traders.
0
Placer mining was practiced by both Chinese and Native American miners.
Placer mining gave miners the best chance of striking it rich.
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5. Why was placer mining the most widely used method of mining for gold?
Placer mining was afforda...
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