Describe the importance of agriculture to the people of Central America. Why is an agrarian based society often bad for a country? What are the future problems that
must be addressed related to agriculture in Central America?

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.