In egypt, which of the following areas is most heavily populated?
a.
the banks of the nile river
b.
the coast of the red sea
c.
the middle of the sahara desert
d.
the cooler mountain regions to the south

What did the pattern of earthquakes in the wadati-benioff seafloor zones show scientists? a.) earthquakes occur where the ocean floor reaches its highest temperatures. b.) many earthquakes take place 700 kilometers below the seafloor. c.) slabs of ocean floor return to the mantle in subduction zones. d.) ocean - trenches cause earthquakes.

Ozone in the upper atmosphere has been depleted by a. sulfur dioxide. b. chlorofluorocarbons. c. carbon dioxide. d. oxygen.

Iceland has taken advantage of its geology to meet a. political needs b. energy needs c. cultural needs d. economic needs answer b. energy needs