A large group of homes
O Technology
OCommunication
O Development
O Statistics

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)

Why slip off slopes are found on the inside of meanders? why river cliffs are found on the outside of meanders?