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2 February, 15:21

What do valleys on the surface of a planet or moon suggest about previous land features?

A.

the presence of human life forms

B.

the presence of water

C.

the presence of earthquakes

D.

the constant bombardment of asteroids

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Answers (2)
  1. 2 February, 16:40
    0
    B

    Explanation:

    Valleys are created by streams of running water
  2. 2 February, 16:54
    0
    B. The presence of water.
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