[[1]] is the highest quality of coal.

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Detailed Solution

Anthracite is the highest quality of coal.
In India, the most abundant fossil fuel is coal. It is easily available and used by various industries and rural people for their livelihood. Coal is a conventional energy source that is limited in nature and must be used wisely, as this energy source is used in many ways, like power generation, industries, and homes. This fuel takes millions of years to form because it is formed by decomposing plants, animals, and human bodies. As this fossil fuel is abundant, various categories of coal have been found in India: Anthracite, Bituminous, and Lignite.

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