Question

why are fossil considered important in the study of evolution? Explain two ways by which age of fossils can be estimated.

Answer 1

Fossils provide evidence in favour of evolution/ established evolutionary relationship by providing missing links.

Two ways:
1. Relative method- Fossils found closer to the surface are more recent than those in deeper layer
2. By detecting the ratios of different isotopes of the same element in the Fossils material
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