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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.
it is useful because without it we will all DIE
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It is only useful if you can test it.
Yes,burning fuel is a useful chemical reaction as energy is released and can be converted into different forms to do useful work
The name speaks for itself. Any product that can be used in/with another product or part is far more useful than one that can only be used with one product or part.
The name speaks for itself. Any product that can be used in/with another product or part is far more useful than one that can only be used with one product or part.
It is useful to know the name of a thing, but more useful to know the thing itself.
when is the estimation of product is a useful tool
The purpose of mining is to find and retrieve useful materials in the ground and bedrock.
Reuse that product and turn it into something that can help the environment.
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most of the product use in civil but most useful in civil 3d,revit,3dmax etc. . . .
survey the people who used the product. -apex
SUPW means 'Socially Useful Product Work'.
To protect you from the exposed ground underneath.