Geography, asked by an8011378, 18 days ago

What is Coal ? State the four different types of coal

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Answers

Answered by noorkhanaarfah

4

Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons.

Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite.

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