The existence of huge channels that look like dry riverbeds on Mars is strong evidence that it ____.

Question

Quizplus · Accepted Answer

The presence of large channels that resemble dry riverbeds on Mars suggests that liquid water once flowed on the planet's surface. This indicates that Mars had a warm and wet climate in the past, which is a key factor for the possibility of life on the planet. Therefore, choice C, "had a warm climate in the past", is the best option.

The Existence of Huge Channels That Look Like Dry Riverbeds