Discussion Post
Earth has two different types of crust, continental and oceanic, that form the outer chemical layer of the Earth and produce large elevation differences at the Earth's surface. How does the chemical composition of these two types of crust contribute the the topography we find at the Earth's surface today?
The response must include a reference list. One-inch margins, double-space, Using Times New Roman 12 pnt font and APA style of writing and citations.