Evidence of past water on Mars comes from each of these EXCEPT

Question

Quizplus · Accepted Answer

Evidence of past water on Mars includes polygon-shaped cracks in rocks, dried-up lakebeds and riverbeds, and the presence of small, round hematite rocks, which suggest that water once flowed there. However, the observation of water-rich bodies striking the planet does not directly indicate past water on Mars itself but rather suggests a potential source of external water delivery.

Evidence of Past Water on Mars Comes from Each of These