Agriculture allowed for denser populations in comparison with hunting and gathering because
a. it totally eradicated the possibility of food shortages
b. it allowed for more yield per acre than food collected in the wild
c. cultivation of crops made food itself healthier
d. agriculture provided a more diverse source of food
e. growing crops provided more protein than hunting
b
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What was similar about Pakistan's reasons for reacting furiously in September of 2008 and the Afghan reasons for ordering a Marine unit out of Afghanistan in March 2007?
A. Both countries had grown weary of the war in Afghanistan. B. Both countries had decided to stop supporting the war the U.S. did not meet certain stipulations. C. Civilian casualties resulting from U.S. military assaults angered both countries. D. Both countries had fallen under the control of Taliban and Al-Qaeda leaders.
About what did Max Planck's quantum theory of energy raise fundamental questions?
a. The structure of stars b. Acceptance of medieval theories of chemical reaction c. The subatomic realm of the atom and the basic building blocks of the material world d. The safe transmission of electrical energy for powering modern economies e. The electro-dynamics of moving bodies
Freight business did not immediately shift to the railroads because __________
a. companies distrusted the safety of the steam engine b. companies received financial incentives from the government to stay with canal routes c. canal boats were cheaper d. companies were not convinced of their reliability e. companies were fiercely loyal to the canal operators
The U.S. had a long-term policy of isolationism in foreign wars
Indicate whether the statement is true or false