How are water systems important part of canada's 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.

The biome that includes evergreen trees is the forest biome.

What information is usually stamped on the side of a rifle's barrel?