Study Guide AST 109 Final Spring 20110

1 europa and io 2 titan and callisto 3 io and callisto

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Unformatted text preview: year. 5. radioactive decay. Europa has few craters because 1. it keeps one face always pointed toward Jupiter which screens it from incoming meteorites. 2. it has erased craters nearly as fast as they have formed. 3. its surface is not strong enough to support craters. 4. it does not have a solid surface. 5. it is protected from impacts by Jupiter's gravity Which of the Galilean satellites are geologically active? 1. Europa and Io 2. Titan and Callisto 3. Io and Callisto 4. Ganymede and Callisto 5. Ganymede and Titan Similar to Jupiter, Saturn is obviously oblate. This means that 1. Saturn has belts and zones in its upper atmosphere. 2. Saturn's radius is larger at its equator than at its poles. 3. the density of the atmosphere increases until it is a liquid and no solid surface exists. 4. Saturn's radius is much larger than Earth's radius. 5. Saturn rotates very slowly. Which of the following objects may have organic particles on its surface as a result of the interaction of sunlight with methane in its upper atmosphere? 1. Metis 2. Ganymede 3. Io 4. Titan 5. Hyperion What causes the geological activity seen on some of the inner moons of Jupiter? 1. The strong magnetic field of Jupiter heats the surface of the inner moons. 2. Solar radiation reflected of...
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