Question

Differentiate between different varieties of coal

Answer 1

Answer:

There are four varieties of coal

1. Peat :- the first step of co formation results in a material called peat

Lignite:- the second stage of coal formation is brown coal called lignite. It is composed of compressed woody matter that has lost most of its moisture.

3. Bituminous Coal :- The third stage of coal formation is bituminous coal. It is a dence , dark , brittle variety of coal that has lost almost all of its moisture and impurities.

4. Anthracite :- It is the final stage in the formation of coal . This is formed when bituminous coal remains in the earth for a long time and is subjected to extreme pressure.

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Answer 2

Answer: There Are always for types of coal called *peat, lignite,bituminous,antracite*

Explanation:

1. Peat :- the first step of coal formation results in a material called peat.

2. Lignite:- the second stage of coal formation is brown coal called lignite. It is composed of compressed woody matter that has lost most of its moisture.

3. Bituminous Coal :- The third stage of coal formation is bituminous coal. It is a dence , dark , brittle variety of coal that has lost almost all of its moisture and impurities.

4. Anthracite :- It is the final stage in the formation of coal . This is formed when bituminous coal remains in the earth for a long time and is subjected to extreme pressure.

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