Question

Write short on coal (in two three lines ) for class 5

Answer 1

Answer:

Coal is a hard rock which can be burned as a solid fossil fuel. It is mostly carbon but also contains hydrogen, sulphur, oxygen and nitrogen. It is a sedimentary rock formed from peat, by the pressure of rocks laid down later on top. ... Also wood heated in an airless space can make charcoal, which is like coal.

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Answer 2

Answer:

Coal is a black substance found deep inside the earth. It is also called burried sunshine because it is made due to the process of carbonisation which is when plants die they got burried in the ground and it takes millions of years to form it.it is broadly of 4 types peat, lignite, bituminous and anthracite. it is used to generate thermal electricity.