Which fact is the basis for using the fossil record as evidence of evolution?%0D%0A%0D%0A%0D%0A%0D%0A a%0D%0AIn rock layers, the older fossils are found in the deeper layers%0D%0A b%0D%0AThere are fossils of all life forms to be found in rock layers%0D%0A c%0D%0AFossils have been shown to provide a complete record of human evolution%0D%0A d%0D%0AAll fossils were formed at the same time
a) In rock layers, the older fossils are found in the deeper layers.
This fact is the basis for using the fossil record as evidence of evolution because it shows a clear progression of life forms over time, with simpler organisms found in deeper layers and more complex organisms found in more recent layers. This provides evidence of how species have changed and evolved over time.