The largest difference between Mars' northern and southern hemispheres is that
A) the northern has all the outflows and must have been much hotter.
B) the southern has a polar cap, but none ever forms in the north.
C) the northern is higher overall, despite some high volcanoes in the south.
D) the southern appears older, with more impact craters.
E) the southern is much darker, with large mare- like basaltic lava flows.

Question

Quizplus · Accepted Answer

The southern hemisphere of Mars appears older and has more impact craters compared to the northern hemisphere. This difference suggests that the southern hemisphere has been exposed to space for a longer period, allowing more time for impacts to occur, while the northern hemisphere may have been resurfaced by volcanic or other geological processes.

The Largest Difference Between Mars' Northern and Southern Hemispheres Is