To determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones. This is called the Rule of Superposition. ... With absolute age dating, you get a real age in actual years
All of both North and South America are fully in the western hemisphere. Hope I helped.
it gives you a certain direction, north, south,east,west, and in-between!
