Based on what you learn about jovian moons by watching the videos or reading your textbook, what types of evidence for recent or ongoing geological activity have been observed on one or more jovian moons?
a. active volcanoes river valleys feeding into surface lakes of liquid water surfaces with very few impact.
b. craters river valleys feeding into surface lakes of very cold liquids large.
c. violent storms swirling in counterclockwise directions ice crystals being sprayed out into space.