Junior Class 2 Answered
my sister told me that rail used to run by coal. what is coal?
Asked by heerpupadhyay4375.2sdatl | 22 Apr, 2020, 06:35: AM
Expert Answer
- Coal is a fossil fuel like natural gas and oil.
- It is a flammable black hard rock used as a solid fossil fuel.
- The major source of fuel throughout the world is coal.
- Coal is a black or brown rock which, when burned, releases energy in the form of heat.
- One of coal’s main uses is the production of electricity.
- That is why, it was used to run rails in olden times.
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