3. How do scientists know when a mass extinction took place?
A. They find more fossils of plants.
B. They find fossils of animals that died suddenly.
C. They find a sudden disappearance of many fossil species.
D. They find evidence of changes in Earth's atmosphere.

I'm sorry to hear that. i will try to answer your other questions if it is within my ability. : )answers: my favourite colour is black.my favourite food is pasta.my favourite school subject is english, but i do also like lunch time.my least favourite subject is history as well as geography. i have currently garnered a quite equal hatred for both of the subjects.what about you? well, you for the points. : )

There would be one bar shorter than the bar for peaches.