4. Which variety of coal contains recognisable traces of the original plant material ? A.Anthracite B.Lignite C.Peat D.Bitumen
Answer: Option C Solution: Peat contains recognizable traces of the original plant material. Initially the peat is converted into lignite or ‘brown coal’ - these are coal-types with low organic maturity. In comparison to other coals, lignite is quite soft and its colour can range from dark black to various shades of brown.
