Science, asked by Anonymous, 7 months ago

it is a readily combustible black brown sedimentary rock ?

Answers

Answered by Anonymous

4

Answer:

There are four main coal types: lignite, subbituminous, bituminous and anthracite

Answered by amitesh66

6

Coal is formed from remains of plants buried beneath the crust of the earth. ... Coal is Gray or a brownish black sedimentary rock ready to be combustible.

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