Io's volcanic activity is powered by frictional heating caused by the gravitational pull of Jupiter and several of its other moons.

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Quizplus · Accepted Answer

Io's volcanic activity is indeed powered by frictional heating caused by the gravitational pull of Jupiter and some of its other moons. This is because Jupiter's strong gravitational force constantly tugs at Io, causing it to flex and stretch, generating heat within Io's interior. The heat produced from this frictional heating drives the volcanic activity on Io, creating some of the most dynamic volcanic activity in the solar system.

Io's Volcanic Activity Is Powered by Frictional Heating Caused by the Gravitational