<span>They studied fossils and applied the principle that old layers of rock are below young layers! -. ... What two things did 19th century scientists do to determine the relative ages of sedimentary rock all over the world? ... Making the world better, one answer at a time. ... What are two things that sedimentary rocks change to?</span><span>
I'd choose C.) and here is why. If I asked someone for directions to a hotel they are going to describe the roads and buildings to me. They might say it is built in an embankment then I know to look for a hotel in an embankment. If this is wrong please let me know so I can research more on the subject.
Why might a post classical civilization want to conquer Egypt and the Nile River Valley? It's fertile land provided the foundation for the first human civilizations and its access to the Persian Gulf and location between Europe, Asia, and Africa made it a center of trade.