Which represents the smallest percentage of earth's water? Apex A. frozen water B. surface fresh water C. ground water D. salt water

If a population is growing quickly in a small area then what must increase as well

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.

Which topic would a meteorologist most likely research? -meteors in space -marine ecosystems -atmospheric conditions -the runoff of stream systems