Coal - Simple English Wikipedia, the free encyclopedia

# Coal

### From Simple English Wikipedia, the free encyclopedia

A piece of coal

Coal is a black solid fossil fuel. It is usually very hard. Coal is made of 65%-95% carbon. It also has hydrocarbons and some other compounds in it. It is formed from the remains of plants that lived millions of years ago.

Coal can be burned for energy or heat. About two-thirds of the coal mined today is burned in power stations to make electricity. Burning it is not as common as it used to be, because it causes much pollution.

## [edit] See also

- Petroleum
- Natural gas

## [edit] External links

- History of using coal from the U.S. Department of Energy

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Categories: Basic English 850 words | Geology | Energy

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