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Answered 2009-05-01 00:24:58

runoff channels on mars are equivalent to dry river beds, they show evidence that water flow and currents once existed, the river beds on mars are predicted to be roughly 4 billion years old.

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Surface runoff is water that runs over the surface of the land. Generally the soil has been infiltrated to full capacity. Channel runoff is water in rivers, streams and channels.


What has the author E R Hedman written?

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They believe that it is from water flow.


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Ancient water flows and past geological activity.


Which features on mars point to the possibility of liquid water on the planet?

Gullies and streamlike channels


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What is a tiny groove in soil formed by runoff?

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What has the author Robert Louis Gold written?

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