Where Has Water Been Definitively Detected on Mars

question 261

Multiple Choice

Where has water been definitively detected on Mars?

• A) as a liquid flowing along the numerous flood valleys and meandering stream beds
• B) only as aospheric water vapor, never condensing out as clouds, liquid water, or solid ice
• C) in permafrost and polar ice caps and as water vapor in the atmosphere
• D) as a liquid in undersurface lakes and rivers

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Definitions:

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