How did the invention of hydraulic mining allow for larger mining operations?
(1 point)
Responses
Air blown at high pressure could remove unwanted materials from steel.
Air blown at high pressure could remove unwanted materials from steel.
Water released at high pressure could move large rocks out of the way.
Water released at high pressure could move large rocks out of the way.
New tools were better able to cut through shallow grass and rocks in the soil.
New tools were better able to cut through shallow grass and rocks in the soil.
Wind power could be used to pump water and produce electricity.