Process:  -A mine is excavated in the side of a mountain -Miners enter the mine -Miners remove the coal from the mine -The coal is placed into carts or on a conveyor belt -The coal is moved up to the surface -The coal is loaded onto a truck -The truck takes the coal to a power station.
 Question: What is the effect of there has not been a large loss of blood on miners remove more coal from the mine.?
none