Two feautures of constructive waves geography

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.

Name the peninsula that separates the bering sea from the sea of okhotsk?

Is mars an inhabitable place for humans