terryq4378 terryq4378

11-11-2020
Biology

contestada

Which type of mining is likely the least harmful to the environment?
a. surface mining
b. placer mining
c. subsurface mining
d. none of the above

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briannat7726 briannat7726

11-11-2020

Answer:

Placer mining

Explanation:

Placer mining can be less damaging to the environment than surface mines, as the sediment is returned to the water after the minerals have been extracted.

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alexisangeles160 alexisangeles160

11-11-2020

I am not sure but I think it’s B

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