Multiple choice general knowledge science & technology

The variety of coal in which the deposit contains recognisable traces of the original plant material is

  1. bitumen

  2. anthracite

  3. lignite

  4. peat
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Peat is the lowest grade of coal and contains recognizable traces of the original plant material from which it formed. It's the first stage in coal formation, followed by lignite, bituminous coal, and anthracite in increasing maturity.

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