Copernicus's heliocentric theory
a. posited the earth was the center of the universe
b. posited the sun was the center of the solar system
c. may have derived in part from Islamic scholarship
d. both A and C
e. both B and C
e
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Which art movement is rooted in stylistic sources from ancient Greek or Roman art?
A. Romanticism B. Rococo C. Realism D. Neoclassicism
How has the agricultural industry changed since 1970?
a. The widespread use of commercial fertilizers has increased agricultural productivity. b. Commercial farms produce the majority of goods in the agricultural sector. c. Most farms are located in the southern region of the United States. d. The mechanization of agriculture has led to an increase in the agricultural workforce.
The mfecane was a movement in southern Africa that was the result of ________
A) both internal developments and European pressure B) the slave trade C) developments internal to Africa D) European and Arab commerce
All of the following are considered major environmental threats facing the world in the 21st century EXCEPT
A) pollution and radioactive waste. B) global warming. C) consumption of energy sources. D) weapons of mass destruction. E) problems with African food production.