Name three island countries of africa.

Characteristics of substance farming include all of the following except

Witch layer of the atmosphere has the most air pressure

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.