Mars Has Polar Ice Caps That Differ from the Earth's

Multiple Choice

Mars has polar ice caps that differ from the Earth's Antarctic ice cap in that ____________.

A) the Martian caps consist of a combination of water ice and frozen carbon dioxide (dry ice)
B) the Martian caps have a spiral fracture pattern not found in Antarctica
C) Martian caps are ablated by sublimation only;there is currently no liquid water on Mars
D) All of the above are correct.