Which of these was discovered by the space shuttle Columbia under the Sahara Desert?
A)ancient river ruins
B)Atlantis
C)ancient trade routes
D)an ancient city

Name: Which of these was discovered by the space shuttle Columbia under the Sahara Desert? A)ancient river ruins B)Atlantis C)ancient trade routes D)an ancient city
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The space shuttle Columbia discovered ancient river ruins under the Sahara Desert, revealing evidence of a past climate that was much wetter than today's desert environment.

Which of These Was Discovered by the Space Shuttle Columbia