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Fossil Fuels

Author: susan morgan
Across
Most common soft coal used to produce electricity in power plants
Another name for hard coal
Plant remains extracted from the earth which become a source of energy
Only type of mine that is not underground
A shaft is sunk straight down through the coal to coal beds
Used to mine coal that lies exposed along the side of a hill
Down
Coal that is found in layered formations
Layers of rock and soil on top of the coal beds
A tarlike substance found in bituminous coal used to make coal tar
A slope tunnel is dug down to the coal bed
The poorest quality coal which gives off black, sooty smoke