Jupiter Contains a Number of Small Moons That Are Thought

question 34

Multiple Choice

Jupiter contains a number of small moons that are thought to be captured comets or material ejected by collisions with larger objects.What is the evidence for this theory?

• A)Spacecraft have sampled them,and they are known to be comets.
• B)Their orbits are highly elliptical,off the plane of the ecliptic,and many are retrograde,which is unlikely for satellite formed during planetary accretion.
• C)They are too big to have been formed during planetary accretion.
• D)Analyses from spacecraft show they have compositions completely different than Jupiter or its moons.

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Definitions:

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