Select the CORAL REEF tab. Click Return to original settings and Restart. Set the Ocean temperature to 33 °C. Click Advance year 10 times.

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.