When might relative location be more useful

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.

Determine which of the two measurements in each set is lesser.10°f or 20°ca. 10-fb. 20°c

Match the letters with the correct terms