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Assessment
Which surface feature on Mars is primarily formed by ancient volcanic activity?
Olympus Mons
Valles Marineris
Hellas Planitia
Polar Ice Caps
What evidence suggests that liquid water may have once existed on the surface of Mars?
The presence of ice caps
Recurring Slope Lineae (RSL)
The existence of volcanoes
Large impact craters
What is one major difference between Earth's surface processes and those on Mars?
Mars has no atmosphere.
Mars experiences no erosion.
Mars has far less water present on its surface.
Mars has only impact cratering as a surface process.
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