Question

write briefly about the stages in the formation of coal​

Answer 1

Answer:

Explanation:

There are four stages in coal formation: peat, lignite, bituminous and anthracite. The stage depends upon the conditions to which the plant remains are subjected after they were buried – the greater the pressure and heat, the higher the rank of coal.

Answer 2

There are four stages in the formation of coal they are Peat, Lignite, Bituminous and anthracite.

Explanation:

• Coal was made about 200 to 300 million years ago by the plants such as ferns, moss and trees which existed in the earth.

• Peat is the initial stage of the formation of coal and it is generally called as precursor of coal.  

• lignite is the most inferior quality and the second stage in the formation of coal.

• It contains 60% - 70% carbon.

• Bituminous is the third stage where added pressure has made it compact where any traces of plant life is nowhere to be seen.

• It is  the usual variety of coal which is reffered as  household coal.

• This stage is termed as soft coal.

• Anthracite is the fourth stage where hard coal emerges. With short flame and less smoke coal burns.

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