Io, one of the major Jupiter satellites, is undergoing extensive volcanic activity associated with interior heating that is caused by:

Question

Quizplus · Accepted Answer

Tidal distortion and internal friction caused by flexing are the main source of heat for Io's extensive volcanic activity. This is because Io experiences strong gravitational forces from both Jupiter and the other moons around it, causing it to flex and generate heat in its interior. The other options are not major sources of interior heating for Io.

Io, One of the Major Jupiter Satellites, Is Undergoing Extensive