Older glaciers have thinner shorter longer ice crystals than younger glaciers.

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.

Religious beliefs of indigenous peoples of oceania connected them to

Can someone me with this plz? ! i'm putting 20 points on it!