Io Has the Most Volcanic Activity in the Solar System

question 60

Multiple Choice

Io has the most volcanic activity in the Solar System because

• A) it is continually being bombarded with material in Saturn's E ring.
• B) it is one of the largest moons and its interior is heated by radioactive decays.
• C) of gravitational friction caused by the moon Enceladus.
• D) its interior is tidally heated as it orbits around Jupiter.
• E) the ice on the surface creates large pressure on the water below.

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