The form of coal/fuel in the ascending order of heating value can be best represented as :

A Lignite < Peat < Bituminous < Anthracite

B Bituminous < Lignite < Peat < Anthracite

C Peat < Lignite < Bituminous < Anthracite

D Peat < Lignite < Anthracite < Bituminous

Answer & Explanation
Answer:Peat < Lignite < Bituminous < Anthracite

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Environmental Studies Short Question | Gkseries