Which of the following is evidence of earth's age provided by fossils?

fossils are found only in sedimentary rock.
fossils range from simple to complex across rock layers.
fossils formed gradually over time.
fossils are found in rock above water.

Fossils range from simple to complex across rock layers.

Explanation:

The finding of the fossils in the different layers of the earth crust suggests that the evolution of the living organisms from simple primitive one to the most complex organisms. The examination and determination of the morphological, anatomical and molecular features of the organisms in the fossils have helped in determining the chronological age and has also been helped in determination of the age of earth with respect to the fossils.

more than, less

less than, more

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