Giving away points

YHHH

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.

What are some of the impacts of humans on the earth?

What gigantic island is primarily in the arctic circle?