Question

Sedimentary rock layers—and the fossils in those rock layers—help us understand Earth's history.

Summarize how sedimentary rock and fossils form.
BoLoGnA qUeEn
bOlOgNa
Confused
I need help, and why is that person talking about bolagney?
Anonymous
I suggest using a search engine for that question. search Google for example using sedimentary rocks and fossils