Multiple Choice
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:

Verified
Correct Answer:
Verified
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