Answer :

To know the age of any fossil we use a technique called Fossil succession. using this technique we identify where the fossils are in the rock layer.

Fossils are preserved remains of living organisms such as plants, insects, and animals. and to know the age of these fossils we use the fossil succession technique according to rock strata, we can place them in chronological order, the older fossils are at the bottom of the rock strata while the youngest fossils are found at the top. after knowing the age of the rock we can identify the age of the fossils.

Any time period can be recognized by its fossil contents because Fossil organisms succeed one another in a definite and determinable order, this technique is also helpful for coal extraction.

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