Coal is a hard black coloured substance which is mainly carbon
What are the uses of Coal?
Different uses of Coal are
- It is used in villages to cook food
- It is used in Thermal power plants to produce electricity
- It was used in steam engines of train. It produced steam which ran the steam engines
How is coal formed?
Coal was formed by decomposition of dead plants and trees (dead vegetation) into carbon.
This process of conversion of dead plants and trees into Carbon is called Carbonization
Steps of Coal Formation
Millions of years ago, there were dense forests on earth in low lying areas
Due to floods, earthquakes, volcanoes, etc., the forest got buried in soil
As more and more soil deposited over them, they sank deeper
Due to high temperature and pressure inside the earth, and the due to no air inside the earth,
the dead plants and trees got slowly converted into coal.
Questions
NCERT Question 3 - Describe how coal is formed from dead vegetation. What is this process called?
