A) Lignite
B) Bituminous
C) Anthracite
D) Peat
Correct Answer: D
Solution :
Coal is of four different varieties: peat, lignite, bituminous and anthracite. Among these, peat is the low grade quality coal. It is formed during the starting stage of coal formation. It has the lowest percentage of carbon around 10%-20%.You need to login to perform this action.
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