Question

If there are dried-up riverbeds on Mars, then water once flowed on the Martian surface. There are dried-up riverbeds on Mars. Therefore, water once flowed on the Martian surface.

A) True
B) False

Answer 1

True. The presence of dried-up riverbeds on Mars indicates that water once flowed on the Martian surface.

Step-by-step explanation:

True. The presence of dried-up riverbeds on Mars indicates that water once flowed on the Martian surface. Although no bodies of liquid water exist on Mars today, there is evidence of ancient watercourses and intermittent outbreaks of liquid water. The analysis of Martian samples has also revealed the presence of water and organic compounds, suggesting that Mars may have once had oceans and potentially even life.