The ultimate cause of tectonic plate motion is the
A. escape of heat from Earth's interior.
B. second law of thermodynamics.
C. tendency for heat to spread out.
D. all of the above
Answer: D
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A. 24 hours B. 365 days C. 60 seconds D. 1 hour E. 30 days
Which of the following are not in the High Cloud group?
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What is the major difference between the two types of tropical climates found in Southeast Asia?
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