By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other. Often we can work out how and where they lived, and use this information to find out about ancient environments. Fossils can tell us a lot about the past.
Answer: Sedimentary rock is formed by sediment(small particles normally formed from erosion) from the air layering over time.
Explanation:
I think it was because we really don't know what exactly happened in the past.
Also, I'm pretty sure people did not keep track of colored people back then.
<span>More than 90 percent of congressional bills don't make it through the committee. This essentially means they're dead. They never get to become laws because they don't make it far enough to be considered. Only the best bills survive to be voted on.</span>
