In Africa, premodern Homo sapiens fossils have been found in all of the following EXCEPT
a. Ethiopia.
b. South Africa.
c. Zambia.
d. Egypt.
e. Tanzania.
d
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If the number of demanders for granite counter tops increases at the same time as the number of suppliers of granite counter tops decreases and the shift in demand is greater than the shift in supply, which of the following is true?
A) Both the equilibrium quantity and price will decrease. B) Both the equilibrium quantity and price will increase. C) The equilibrium price will decrease and the equilibrium quantity will not change. D) The equilibrium price will increase and the equilibrium quantity will increase.
According to the model of human evolution in Ember and Ember, the presumed common ancestor of apes and modern humans lived about _________ million years ago
a. 30 b. 15 c. 10 d. 6
Discuss the importance of the biogas initiative in China. What barriers did Li Jian find to the adoption of this energy substitute in rural China?
What will be an ideal response?
In addition to encouraging the emergence of democratic governments, what else would minimize the risk of war?
A) encouraging nations to be more economically interdependent B) creating nongovernment organizations to cover larger geographic regions C) giving more power to transnational groups like the United Nations D) producing more food and ensuring more equal distribution