coal

Definition

Mineral deposit containing combustible substances which is considered to be a fossil fuel. Coal is formed from plants that have been fossilized through oxidation. The end result is a black hard substance that gives off carbon dioxide when burned. Coal is currently the most widely used substance to generate electricity and heat. Due to the harmful gases that it releases into the environment, the use of coal is constantly being reduced as people search out alternative fuels.


coal is...

... in the Environment & Pollution Control subject.

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