The form of coal with the highest energy content is _______________.

Question

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Anthracite is the form of coal with the highest energy content. It is a hard, shiny black coal that burns with a clean flame and produces very little smoke or soot. Lignite has the lowest energy content, while bituminous and subbituminous coals have intermediate energy content. Peat is not technically a coal, but a precursor to coal that has not undergone enough heat and pressure to become a true coal. Vegetation is not a form of coal, but a source of the organic material that can eventually become coal.

The Form of Coal with the Highest Energy Content Is