Multiple choice

Which are the three main varieties of coal ?

  1. Anthracite, Bituminous and Lignite

  2. Anthracite ,Bituminous coal,LPG

  3. Kerosene, petrol, gas

  4. Coal tar,Coke,natural gas
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A Correct answer
Explanation

Coal is classified into different ranks based on its carbon content and maturity, with the three main varieties being anthracite, bituminous, and lignite. Other options include substances like LPG or kerosene, which are petroleum products, not coal types.

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