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adreamer adreamer
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6 years ago
The origin of the erosion features seen on the surface of Mars appears to be due to
A) runoff after rainfall
B) erosion by water-rich debris flows
C) an underground source
D) one or more of these
Textbook 
Life in the Universe

Life in the Universe


Edition: 4th
Authors:
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DonskoyDonskoy
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6 years ago
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adreamer Author
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6 years ago
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