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प्रश्न
Describe the four major types of coal.
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उत्तर
Depending on the carbon content, there are four types of coal: Arundeep’s Self-Help to Voyage-7
(a) Anthracite is the best quality of coal since it has almost 90% carbon.
(b) Bituminous coal is the second-best coal with 65% to 70% carbon.
(c) Lignite is poor quality coal with a carbon content of around 60%.
(d) Peat has very little carbon, is not fully formed, and gives little heat and a lot of smoke on burning.
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