What is the heat source that causes the extensive volcanic activity observed on Jupiter's satellite Io?
A) frictional heating by mantle convection and crustal tectonics
B) tidal stresses from Jupiter and Io's companion moons
C) "primordial" heat remaining from when Io first formed
D) heat released by radioactivity in Io's core and mantle
Correct Answer:
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Q123: On which other world in the solar
Q124: What is the internal structure of Io?
A)
Q125: Based on its average density of 2970
Q126: Jupiter's satellite Europa is believed to be
Q127: Much of the surface of Europa resembles
A)
Q129: Which of these is NOT a reason
Q130: When Io passes between Jupiter and Europa,
Q131: The very thin but measurable atmosphere of
Q132: Io would probably be less active geologically
Q133: What appears to have caused the extensive
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