Question

which type of mining is an example of subsurface mining (mining that is done far below the surface of the earth)?
below - ground long wall mining
surface mining
mountaintop removal
surface strip pit mining

Explanation:

Subsurface mining involves extraction far below the earth's surface. Surface mining, mountaintop removal, and surface strip pit mining all occur at or near the earth's surface, while below-ground long wall mining takes place deep underground.

Answer:

below-ground long wall mining