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Ganymede is the largest of the 95 known moons orbiting ____.
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1. Mercury
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____ has an atmosphere of 78% nitrogen and 21% oxygen.
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2. Venus
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Due to iron oxide (rust) on its surface, ____ appears red.
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3. Earth
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The presence of ____ was mathematically predicted in 1846.
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4. Mars
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Titan is the largest of the 146 known moons orbiting ____.
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5. Jupiter
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The Sun rises in the West on ____, due to retrograde rotation.
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6. Saturn
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____ and Neptune are about four times larger than the Earth.
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7. Uranus
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The moons Ganymede and Titan are larger than the planet ____.
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8. Neptune
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