Question

What is the superior quality of coal called ?

Answer 1

Black coal or Bituminous coal
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Answer 2

HEY MATE HERE IS YOUR ANSWER....


Bituminous coal or black coal is a relatively soft coal containing a tarlike substance called bitumen or asphalt. It is of higher quality than lignite coal but of poorer quality than anthracite. Formation is usually the result of high pressure being exerted on lignite.

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