6. sep cite evidence. identify a major event in earth’s past and describe the supporting evidence for that…

6. sep cite evidence. identify a major event in earth’s past and describe the supporting evidence for that event you would expect to observe in the fossil record.

6. sep cite evidence. identify a major event in earth’s past and describe the supporting evidence for that event you would expect to observe in the fossil record.

Answer

Brief Explanations:

One major event is the mass - extinction of the dinosaurs. Fossil evidence includes the sudden disappearance of dinosaur fossils at the end - Cretaceous boundary. There are also iridium - rich layers in the geological record at this time, which is thought to be from an asteroid impact. The impact would have caused environmental changes leading to the extinction of many species, including dinosaurs. Fossils of non - avian dinosaurs are abundant before this boundary and absent after, providing strong evidence for this mass extinction event.

Answer:

One major event is the mass - extinction of the dinosaurs. Fossil evidence includes the sudden disappearance of non - avian dinosaur fossils at the end - Cretaceous boundary and iridium - rich layers in the geological record at this time.