Which one of the following is a type of "new renewable" energy?
A) sustainably harvested fuelwood
B) ethanol
C) wind power
D) "biogas" methane
E) biodiesel
C
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Why might the following nuclear reaction not be very good for energy production in a fission reactor?
U ? 
Ba + 
Kr + 1 neutron
A. The mass of the by-products is too high and therefore the energy released will not be high enough. B. The material only produces one neutron so the chain reaction will not be very efficient. C. Interatomic attraction between the products will impede the efficient separation of the atoms from the unstable nuclei. D. There are too many products produced. E. The products are too large.
Who was the first person to estimate the size of the Earth within approximately 8% of its true size based on the geometric observations of travelers?
A) Captain James Cook of the British Royal Navy B) Eratosthenes of Cyrene C) U.S. naval officer Matthew Maury D) The Polynesians
Mormonism is most concentrated in the counties surrounding Salt Lake City, Utah, and the population of Mormons as a percentage of total county population begins to decline the further away from Salt Lake City. This is an example of
A) assimilation. B) acculturation. C) syncretism. D) distance decay. E) time space compression.
Petroleum consists of a variety of liquid compounds which are accurately referred to as
A. fossil fuels. B. hydrocarbons. C. natural gases. D. crude oils.