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Astronomy Review Quiz

____ has the shortest orbit. A year is just 88 Earth days. 1. Mercury
Due to its low density, ____ could theoretically float on water. 2. Venus
____ has an atmosphere of 78% nitrogen and 21% oxygen. 3. Earth
____ rotates so slowly that a day is longer than its year. 4. Mars
The Great Red Spot on ____ is a massive persistent windstorm. 5. Jupiter
____ was the first planet discovered using a telescope (1781). 6. Saturn
____, the windiest planet, is 30 astronomical units from the Sun. 7. Uranus
____ has a huge dormant volcano named Olympus Mons. 8. Neptune