River deltas such as the mississippi river delta developed due to a. tectonic activity. b. the weathering of surface material. c. deposition of sediment by water, wind, or ice.

What re the two main phrases of the cell cycle.

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.

18. which statement about cancer is true?