In which african ecosystem would you most likely find giraffes, zebras, and lions in a grassland habitat? a. the tundra b. the tropical rainforest c. the desert d. the savanna

How do oceanographers measure the salinity of ocean water?

True or false.the baltic states have taken steps to diversify. or decrease the variety of their industries

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.