What is the relationship between the adoption of agriculture and climate change in South America?
a. The presence of serious periodic droughts inhibited the development of agriculture.
b. Periodic droughts led to the production of crops that could be stored for future shortages.
c. Agriculture was adopted to minimize shortfalls in marine resources due to disruptions during El Nio years.
d. The relative stability in climate in South America favored the development of agriculture and domestication.
e. Persistent troughs of atmospheric high pressure caused high rainfall patterns supporting agriculture.
Question 2
Which of the following statements best describes the process of the adoption of domestication in Mexico?
a. It occurred rapidly due to the productive potential of the plants.
b. It occurred gradually, largely because the crops offered greater predictability in resources.
c. It occurred gradually, because maize required a long acclimation period.
d. It was largely the product of diffusion from South America.
e. It occurred rapidly as a result of the migration of farmers from South America.
The site of Gladysvale in South Africa is excavated for Australopithecus remains.
A family of African Americans arrive in Chicago, migrants from the American South, in an exodus that
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