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8 Cards in this Set
- Front
- Back
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Is Mercury tidally locked to the sun, like the Earth?
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No
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Mercury's orbit is....
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semi-synchronous
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Mercury presents the same face to the sun....
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every other time around
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Mercury rotates 3 times for every two orbits
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One Mercury “day” lasts two Mercurian years!
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blank surface temperature and blank escape velocity
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high surface temperature and low escape velocity
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No atmoshpere means....
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drastic temperature changes
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little atmosphere comes from....
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solar wind
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Mercury's surface similar to the ...
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1.moon's
2. no platetectonics |
