Approximately how much of central americas agricultural land is used for cattle

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.

Based on the information in the graph, what can you conclude about humans in the world in general?

Which type of seismic waves are confined at the surface