Thursday, October 18, 2012

coal mining questions

1:the diference of surface mining and the under ground mining is that the surface mining is in the surface or claso to the surface and the underground mining is in the under ground

2:bigs machines to transports bigs volumens of materials

3:tunnels are use to travel around the mine

4:the conveyor transport coal of the mine

5:slope , drift and shaft
drift:is built when the coal seam lies in tjhe side of a hill or mountain .
shaft:a large hole . or shaft , is drilled down into the grounds until it reaches the coal seam
slope. in a slope mine tunnel slannts down from the surface to the coal seam

five words of the glossary:

surface mine: type of mine created to acces coal sean close to the ground`s surface

conveyor:a continous moving belt that transport large volumens of material

bituminuos:type of coalused to scratch coal from a block several feet wide

overburden:layers of earth and rock covering a coal seam

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