The presence of channels carved out on the slopes of large Martian volcanoes is consistent with
A) recent wind erosion
B) the action of plate tectonics
C) the existence of past underground pockets of water
D) recent impacts

Question

Quizplus · Accepted Answer

The presence of channels carved out on the slopes of large Martian volcanoes suggests the existence of past underground pockets of water. This theory is further supported by the detection of mineral deposits on Mars that are typically formed in the presence of water.

The Presence of Channels Carved Out on the Slopes of Large