The location of natural resources in Africa contributes to its economic diversity. In Tanzania much of the economic activity relates to
while in Sierra Leone the economy centers on
A. drilling; mining
B. mining, agriculture
C. agriculture; mining
D. agriculture; drilling

Most of earths fresh surface water is found in

Which are evidence of the seafloor spreading? a. molten material b. magnetic stripes c. continental material d. drilled core samples e. ocean water samples

Which ecosystem best fits the characteristics listed below? which ecosystem best fits the characteristics listed below? ii. seasonal migrations of millions of wildebeests, zebras, and elephants iii. large numbers of predators, such as lions iv. acacia trees and grasses a. the congo rainforest b. the african mangroves c. the serengeti grasslands d. the sahel