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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.

Find the percent of change from 500 oz to 800 oz

Dry land planting can benefit the environment by reducing the need for tillagate