Question

Define Fossils? name some of them.

Answer 1

the traces of the animals or any other organism
which under the soil can be termed as fossil or un other words the remains or impression of a prehistoric plant or animal embedded in rock and preserved in petrified form.
example - The remains of a Hadrosaur
Typically, hard structures like bones, shells, and teeth fossilize more often than soft-bodied structures like tissues or plant leaves,

Answer 2

The fuels which are formed by the decomposition of dead plants and animals buried under the earth long long ago.
coal , cng, lpg, diesel, petrol, kerosene are some examples.