Plate tectonics is a result of Earth's internal heat engine, powered by
A. gravity
B. the Sun
C. heat flowing from Earth's interior outward
Answer: C
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Oil shales are ____
A)found only in North and South America B)useful for the kerogen that can be extracted C)less expensive to process than are conventional oil sources D)currently producing 15 percent of the United States' oil E)currently producing 30 percent of the United States' oil
Which is a branch of Christianity?
A) Druze B) Eastern Orthodox C) Shi'ite D) Theravadist E) Judaism
What was the basis of Canada's atypical economy?
A) urban-based manufacturing B) unprocessed resources for export C) finance, insurance, real estate (FIRE) D) public administration E) professional and technical services
In the pea and Moon experiment, it is most important that
A. the pea be green. B. the Moon be 100% full. C. light travels in straight lines. D. all of the above