Which of the following have NOT been discovered on Mars?
A) a huge canyon system that began as a large rift
B) the largest volcano in the Solar System
C) channels cut by running water
D) examples of slope failure
E) Mars contains all of these features

Question

Quizplus · Accepted Answer

Mars indeed has all of these features: Valles Marineris (a huge canyon system), Olympus Mons (the largest volcano in the Solar System), evidence of channels cut by running water, and examples of slope failure.

Which of the Following Have NOT Been Discovered on Mars