contestada

How are coal types classified?
color and texture
carbon content and heat value
depth from the surface
sulfur content

Respuesta :

It’s carbon and it’s heat value
AshleighJBoggs

Answer:

I believe its B...."Carbon Content and Heat Value"

Explanation:

Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite. The ranking depends on the types and amounts of carbon the coal contains and on the amount of heat energy the coal can produce.

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