Which crop was one of the first to be domesticated?
A) soybeans B) corn C) chickpeas D) sorghum E) rice
Answer: C
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During the process by which energy is produced inside of stars
A) hydrogen is fused together to form helium. B) helium is fused together to form hydrogen. C) hydrogen splits to form helium. D) helium splits to form hydrogen.
More than anything else, the ________ and its box-like steel-frame structures of concrete and glass facades have imposed a measure of uniformity on cities of the world
A) International Style B) Beaux Arts Style. C) Modern Movement D) SmartCode E) New Urbanism
Which of the following best describes renewable energy resources?
A) They currently supply 20% of the Earth's electricity. B) They contribute only 70% as much greenhouse gases as fossil fuels do. C) They have been largely ignored by the Obama administration. D) They are unsuitable for the economies of developing nations.
The technology in which parabolic mirror arrays are placed in a desert with a water-filled pipe traversing the array is used to capture the renewable energy of
A) nuclear fuel. B) the sun. C) the wind. D) precipitation.