Which planet is known as the Red Planet?, Venus, Mars, Jupiter, Mercury , Which planet has the shortest day (fastest rotation on its axis)?, Earth, Mars, Jupiter, Saturn, Which planet has a day longer than its year?, Mercury, Venus, Earth, Neptun, Which planet rotates on its side (tilted about 98 degrees)?, Neptune, Uranus, Saturn, Mars, Which planet has the largest volcano in the Solar System (Olympus Mons)?, Venus, Mars, Mercury, Jupiter, Which planet has the most extreme temperature difference between day and night?, Mercury, Venus, Mars, Uranus, Which gas giant has the lowest density (it could float in water)?, Jupiter , Saturn, Uranus, Neptune, Which planet has retrograde rotation (spins opposite to most planets)?, Venus, Uranus, Both Venus and Uranus , Mars, Which planet’s moon Triton orbits in the opposite direction to the planet’s rotation?, Jupiter , Saturn , Uranus, Neptune, Which planet has a hexagon-shaped storm at its north pole?, Jupiter , Neptune , Saturn , Uranus .

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