Question

define fossils and how it came to be known for evolution..

Answer 1

Fossils are the remains or impressions of dead organisms preserved in sedimentry rocks or other substances tht lived in the remote past.It provide direct nd most reliable evidences for evolution.
A regular gradation from simple to complex is noted in the fossils of animals found in the rocks os successive eras.This geological succession shows tht evolution has occured.

Answer 2

fossils are the dead remaining plants and animals.