Question

what are fossil fuels?Why are they called non renewable sources of energy? what are they used for?

Answer 1

Coal, crude oil, and natural gas are all considered fossil fuels because they were formed from the buried remains of plants and animals that lived millions of years ago. Uranium ore, a solid, is mined and converted to a fuel used at nuclear power plants.

Answer 2

A natural fuel such as coal or gas , formed over a period of million of years in the geological past from the remains of living organisms . Because they take too many years for renewability . The process of renewability is too slow .