In the United States, the integration of many farms into a large food production industry is known as

What is the correct order of events in the water cycle?

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.

Who developed the theory of plate tectonics?