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Which statement best explains the difference between weather and climate

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.

Under which condition below would u expect a coarse-grained intrusive rock like diorite to form?