Which of the following is correct arrangement of different types of coals according to their increasing carbon content? a) Peat, bituminous, lignite, anthracite b) Peat, lignite, bituminous, anthracite c) Bituminous, peat, lignite, anthracite d) Peat, anthracite, bituminous, lignite
Which of the following is correct arrangement of different types of coals according to their increasing carbon content? a) Peat, bituminous, lignite, anthracite b) Peat, lignite, bituminous, anthracite c) Bituminous, peat, lignite, anthracite d) Peat, anthracite, bituminous, lignite
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