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staedtler staedtler
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7 years ago
The most likely explanation for the retrograde rotation (in a direction opposite that of most other planets) of Venus is
A)   the frictional slowing-down and eventual reversal of Venus's rotation by tidal forces at a time when the planet had deep oceans over its surface.
B)   the frictional drag of its very dense atmosphere on the rotating planet throughout its history.
C)   the combined gravitational effects of its neighboring planets, Mercury and the Earth.
D)   the impact of a massive object on it early in its history.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
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papachulopapachulo
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7 years ago
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staedtler Author
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7 years ago
Grinning Face Exactly what I needed
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