Question

what are fossil fuels? why are they called non renewable? what are they used for.?
in brief​

Answer 1

A natural fuel such as coal or oil, that was formed millions of years ago from dead animals or plants in the ground.

Non-renewable energy comes from sources that will run out or will not be replenished for thousands or even millions of years. Most sources of non-renewable energy are fossil fuels. Fossil fuels were created as the remains of marine creatures decayed millions of years ago, under huge amounts of pressure and heat.

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Answer 2

Fossil fuels are dead and decaying matter of animals and plants. They are known as nonrenewable resource because once we use it we can’t replenished it again. They are used in bikes, cars , trucks e.t.c.