From images from rovers on Mars,some rocks have a layered structure like sedimentary rocks on Earth.This suggests that
A) liquid water was stable in at least some regions of Mars for a substantial period of time in the past.
B) volcanic and wind erosion processes alternate on Mars.
C) they were formed from crater-forming impacts.
D) life was prevalent on Mars in the past.

Question

Quizplus · Accepted Answer

Layered structure in rocks on Mars suggests that sedimentation occurred in the past, which would require stable liquid water for a substantial period of time. This is a strong indication of past habitability on Mars.

From Images from Rovers on Mars,some Rocks Have a Layered