Defination of coal

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Defination of coal

Posted by Snehal Patil 5 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Anannya Mahato 5 years, 2 months ago

A type of black mineral that is dug(mined) from the ground and burned to give heat.

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Aatman Gor 5 years, 2 months ago

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. It is a sedimentary rock formed from peat, by the pressure of rocks laid down later on top.

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Yogita Ingle 5 years, 2 months ago

Coal is a fossil fuel, that was formed by the decay of vegetation, which existed millions of years ago. It is a non-crystalline form of carbon. Carbonisation: The slow process of conversion of dead vegetations into coal is called carbonisation.

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