Answer:
(b)
Fossils refer to the petrified remains of organisms that lived in the past and
get preserved in rocks. The fossil position in the layer of earth relates to
the time of extinction of organisms,
If the fossil of an organism is found
in the deeper layers of earth, then it is predicted that extinction of organism
has occurred thousands of years ago. Whereas the fossils found closer to the
surface are more recent.
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