Canada has taken an international role in a policy of?

Write a 150-word essay describing the effect of people's activities on the environment in the region.

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.

Over half of the african-american population in the united states live in