Can someone pls give me the answer?

Which of the following best describes the economy of africa?

In the construction of new housing development, which factor of production can be categorized as land?

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.