The invention of the traction plow in the third millennium B.C.E. was significant because it
A. led to a temporary decline in the world's population, due to its inefficiency.
B. enabled farmers to plough larger sections of land in a shorter amount of time.
C. enabled the children of farmers to pursue other trades, as fewer hands were needed on the farm.
D. encouraged city dwellers to take up farming as a reliable source of income.
Answer: B
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Which of the following was true of the Panama Canal?
A) It was initially opposed by Theodore Roosevelt. B) It was a financial failure. C) It was completed in a mere three months. D) It cut travel time by water from the East Coast to the West Coast of the United States in half.
Stalin believed that dominating Poland through an unpopular pro-Soviet government
A) would be bitterly resisted by the U.S. and England. B) was not necessary for future Soviet security. C) would be popular with Polish-Americans. D) was of no strategic importance to Britain or the United States.
Which of the following events most polarized public sentiment about the war in Vietnam? a. the Gulf of Tonkin Resolution
b. the Tet Offensive. c. Vietnamization. d. My Lai massacre. e. none of these choices.
Which of the following statements is most likely TRUE about the gender wage gap?
A. Various gender biases do not contribute to it. B. Choices that contribute to the gap are also influenced by gender norms. C. When controlling for variables reflecting personal choice, the wage gap goes away. D. Salary negotiation is the only personal choice variable that contributes to it.