What kind of observations can astronomers use to study Io's volcanoes?
A)visible- light images to study plumes using reflected sunlight
B)visible- light images to study the distribution of sulfur compounds on its surface
C)spectroscopy to determine the composition of the plumes
D)infrared images to study warm plumes on Io's night- side
E)all of the above

Question

Quizplus · Accepted Answer

Astronomers can use a combination of visible-light images to study plumes using reflected sunlight and to study the distribution of sulfur compounds on Io's surface. Spectroscopy can be used to determine the composition of the plumes, and infrared images can be used to study warm plumes on Io's night-side. Therefore, all of the above options are valid observations for studying Io's volcanoes.

What Kind of Observations Can Astronomers Use to Study Io's