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Coal is formed from the remains of trees and plants which grew millions of years ago. They delayed and sank into the ground, and were pressed under layers of rock and other minerals.

As this vegetation dried up, it turned into peat, then into coal. The Coal is found underground in layers called seams. Mines have to be make in order to dig it out. Coal is a very useful product. Not only is it used as fuel but also in the manufacture of such things as dyes and insecticides.

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14y ago

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