Question

how is coal extracted from mountaintop removal mines​

Answer 1

Answer:

Coal seams are extracted from a mountain by removing the land, or overburden, above the seams. This method of coal mining is conducted in the Appalachian Mountains in the eastern United States. Explosives are used to remove up to 400 vertical feet (120 m) of mountain to expose underlying coal seams.

Explanation:

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Answer 2

In mountaintop removal, entire coal seams running through the upper portion of a mountain are mined by removing all of the overburden, creating a level plateau rolling contour.

Explanation:

• Coal seams are extracted from a mountain by removing the land, or overburden, above the seams.
• This method of coal mining is conducted in the Appalachian Mountains in the eastern United States.
• Explosives are used to remove up to 400 vertical feet (120m) of mountains to expose underlying coal seams.
• Dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal.

• Mountaintop removal is a form of surface coal mining. It cracks house foundations, and overloaded trucks destroy roads.
• In this type of mining for coal, giant machines remove topsoil and layers of rock to expose coal seams less than 200 feet underground.