Write a brief note on Coal.
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Coal is a hard rock which can be burned as a solid fossil fuel. It is mostly carbon but also contains hydrogen, sulphur, oxygen and nitrogen. ... Coal can be burned for energy or heat. About two-thirds of the coal mined today is burned in power stations to make electricity.
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- Coal is a hard rock which can be burned as a solid fossil fuel.
- It is mostly carbon but also contains hydrogen, sulphur, oxygen and nitrogen.
- Coal can be burned for energy or heat.
- About two-thirds of the coal mined today is burned in power stations to make electricity
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