What kind of evidence do we have that there was liquid water on

Science
Tutor: None Selected Time limit: 1 Day

What kind of evidence do we have that there was liquid water on Mars in the past. Is there any liquid water on Mars' surface today? Is there water of any kind on Mars' surface today? Explain.

Apr 4th, 2015

presence of enormous outflow channels carved,liquid water exist today but in different forms, example of form is ice with small amount in atmosphere as vapor

Apr 4th, 2015

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Apr 4th, 2015
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Apr 4th, 2015
Feb 19th, 2017
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