Question

how is the coal produces ​

Answer 1

Answer:

Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years.

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Answer 2

Answer:

Coal is produced either from the wood or from the dead remains of plant bodies buried under the soil for several years