Which of the following is evidence that liquid water once existed on the surface of Mars?
A)Dry river beds
B)Mid ocean ridges
C)Whale bones
D)High atmospheric humidity at the present time

Name: Which of the following is evidence that liquid water once existed on the surface of Mars? A)Dry river beds B)Mid ocean ridges C)Whale bones D)High atmospheric humidity at the present time
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Question

Quizplus · Accepted Answer

Dry river beds on Mars indicate that liquid water flowed on the surface at some point in the past.

Which of the Following Is Evidence That Liquid Water Once