The white spots on Io's surface
A) are a combination of water ice and carbon dioxide ice.
B) are actually openings into lava tubes like those found on the Moon.
C) are patches of crystallized sulfur dioxide flakes.
D) remain a mystery.

Question

Quizplus · Accepted Answer

The white spots on Io's surface are patches of crystallized sulfur dioxide flakes. Io, one of Jupiter's moons, is known for its volcanic activity, which leads to the presence of sulfur dioxide on its surface.

The White Spots on Io's Surface