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What is the highwall?
entrance to a drift mine or other mine tunnel
subsurface coal mine
4.5
caving in of the ground over an abandoned coal mine
dangerous highwalls
waste removed from underground (subsurface) mine
vertical face remaining after an area is surface mined
covered or barricaded
What are hazardous water bodies at an abandoned mine site usually associated with?
entrance to a drift mine or other mine tunnel
subsurface coal mine
4.5
caving in of the ground over an abandoned coal mine
dangerous highwalls
waste removed from underground (subsurface) mine
vertical face remaining after an area is surface mined
covered or barricaded
How should a vertical shaft be treated after a mine is abandoned?
entrance to a drift mine or other mine tunnel
subsurface coal mine
4.5
caving in of the ground over an abandoned coal mine
dangerous highwalls
waste removed from underground (subsurface) mine
vertical face remaining after an area is surface mined
covered or barricaded
Which of the following is an example of subsidence?
entrance to a drift mine or other mine tunnel
subsurface coal mine
4.5
caving in of the ground over an abandoned coal mine
dangerous highwalls
waste removed from underground (subsurface) mine
vertical face remaining after an area is surface mined
covered or barricaded
In what type of mine would a underground fire be most likely?
entrance to a drift mine or other mine tunnel
subsurface coal mine
4.5
caving in of the ground over an abandoned coal mine
dangerous highwalls
waste removed from underground (subsurface) mine
vertical face remaining after an area is surface mined
covered or barricaded
What is a mine portal?
entrance to a drift mine or other mine tunnel
subsurface coal mine
4.5
caving in of the ground over an abandoned coal mine
dangerous highwalls
waste removed from underground (subsurface) mine
vertical face remaining after an area is surface mined
covered or barricaded
What pH value would be closest to acid mine drainage?
entrance to a drift mine or other mine tunnel
subsurface coal mine
4.5
caving in of the ground over an abandoned coal mine
dangerous highwalls
waste removed from underground (subsurface) mine
vertical face remaining after an area is surface mined
covered or barricaded
What is a gob pile?
entrance to a drift mine or other mine tunnel
subsurface coal mine
4.5
caving in of the ground over an abandoned coal mine
dangerous highwalls
waste removed from underground (subsurface) mine
vertical face remaining after an area is surface mined
covered or barricaded
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Match it!
Match it!