Are the volcanoes of Io efficient replacers of the surface of this moon?
A) No. The volcanoes emit only gases that dissipate into space.
B) No. The volcanoes emit solid material, mostly sulfur, but this material only coats the surface with about 12 mm per century.
C) Yes. The volcanoes emit enough so that the whole surface is covered with about 1 m of new material per century.
D) Yes. The volcanoes emit enough to coat the whole surface with about 1 m of new material per year.

Question

Quizplus · Accepted Answer

The volcanoes on Io are highly active and emit large amounts of material, including sulfur and sulfur dioxide, which cover the moon's surface. This activity is efficient enough to replace Io's surface with about 1 meter of new material every century, making it one of the most geologically active bodies in the Solar System.

Are the Volcanoes of Io Efficient Replacers of the Surface