Which of the following is true with respect to subsurface mining?

It disturbs about 10 percent more land than surface mining.

Hard rock and shaft mining are types of subsurface mining.

It is often a less dangerous type of mining than surface mining.

All of these are true with respect to subsurface mining.

Question

Which of the following is true with respect to subsurface mining?
	
It disturbs about 10 percent more land than surface mining.
		
Hard rock and shaft mining are types of subsurface mining.
		
It is often a less dangerous type of mining than surface mining.
		
All of these are true with respect to subsurface mining.

praetorian.10 · Answer

Tis processing of ore from a lode mine, whether it is a surface or subsurface mine, requires that the rock ore be crushed and pulverized before extraction of the valuable minerals begins. So what do you think?