Which of these subjects is most important for understanding the root cause of earthquakes?
A) Chemistry
B) Physics
C) Biology
D) Math
B
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The average user in Germany upgrades their cellphone every (almost) 4 years, and every 6 1/2 years in Brazil. In the U.S., the average user upgrades their cell phone every
A) less than 2 years. B) 4 years. C) 6 years. D) more than 8 years.
What was the purpose of the White Australia Policy?
A) to promote immigration of (white) North Americans and Europeans to Australia at the expense of non-white groups B) to promote the emigration of Australians who were of European descent to other nations in the South Pacific C) It was an ethnic isolationist policy established by the Australian government, which sought to place the country's entire aboriginal population on reservation-like holdings in the far western portion of the country. D) to encourage Australians of European descent to migrate from Australia's densely settled east coast to the more sparsely settled interior and west coast E) to clean up the country's white sand beaches, which had been seriously polluted by mining
Glaciers erode by the processes of:
a. corrosion and deflation. b. ablation and abrasion. c. plucking and hydraulic action. d. deflation and saltation. e. plucking and abrasion.
The highest surface air pressure in the U.S. ever recorded occurred when the air was
A) very wet. B) mild. C) very warm. D) very high above the surface of Earth. E) very cold.