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Water Histories on Rocky Worlds
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Astronomy
AST.148 Water Histories on Rocky Worlds
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Which observation would better support ancient flowing water than subsurface ice?
A
A branching valley network connected to a sediment fan
B
A hydrogen-rich layer detected below the polar surface
C
A permanently shadowed crater floor with very low temperatures
D
A radar reflector buried under a mid-latitude glacier-shaped landform
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