What is a landslide that happens on a curved suface called

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.

What material did the moon come from?

All ova contain sex chromosomes corresponding to: x y xx xy