Why do scientists believe there was once liquid water on Mars?
A) Depositional landforms are seen on Mars,but not erosional landforms.
B) Landforms such as river channels and sandbars are seen on Mars.
C) Large depressions are seen on Mars that were once large lakes.
D) Evidence of marine life has been found in the rocks on Mars.

Question

Quizplus · Accepted Answer

Scientists have observed various landforms on Mars that suggest the presence of liquid water in the past, including river channels, deltas, and sedimentary rock formations that are typically formed in the presence of water.

Why Do Scientists Believe There Was Once Liquid Water on Mars