What is the longest day of the year in Australia?
a. June 21
b. January 3
c. December 21
d. March 21
C
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How was radioactive carbon dating useful for the atmospheric calcium additions calculations?
A) It was not useful. B) It helped to establish the amount of calcium present. C) It helped to establish the rate of deposition. D) It was used as a standard amount for a mineral in the soil.
AllĀ of these statements about municipal solid waste are correct EXCEPT
A. It is difficult to determine what is in municipal solid waste. B. Municipal solid waste includes waste from commercial establishments. C. Municipal solid waste includes some materials that can be composted. D. All of these statements are correct.
In what ways did the breakup of Pangaea affect geologic and biologic events on Earth?
The first widespread use of the nation-state concept came in
A) Mesopotamia. B) the Roman Empire. C) Western Europe. D) the United States. E) Southeast Asia.