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ZanzabumX [31]
4 years ago
14

How are placer mining, hydraulic mining, and hard-rock mining different?

History
2 answers:
Vinvika [58]4 years ago
4 0
These are different because the way the rock is worked differs, as well as the type of rock.
Delicious77 [7]4 years ago
3 0

Answer:

placer mining , hydraulic mining method od mining that uses water under high pressure to blast away gravel and dirt to expose the minerals underneath.

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