What types of goods were being transported from Africa to the West Indiles?

Where does the availability of water pose the greatest problem

The vegetation that thrives in the tundra is limited to a. mosses, barley, wheat, and corn. b. coniferous trees. c. dwarf shrubs, mosses, lichen, potatoes, and beans. d. mosses, lichen, algae, and dwarf shrubs.

Explain why the rate of urbanisation is in the way it is between developed and undeveloped countries.