ZT:天文学-IO

4. What factors does the professor mention that help explain IO’s internal heat?
[CHOOSE 2 ANSWERS]

  • A. Two of Jupiter’s other moons affect IO’s orbit.
  • B. IO still retains much of the internal heat that it had when it formed. 
  • C. Heat radiating from Jupiter is absorbed by IO’s rocky surface. 
  • D. Rock movement in IO’s interior causes friction. 

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