Based on the law of superposition, which layer of sedimentary rock is the oldest?

The shift of a vehicle's weight around its center of gravity is known as

How do cells grow and reproduce to maintain homeostasis?

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.