Which of the following is suggested by the flow patterns found on the surface of Mars and the number of craters on top of them?
A) Volcanism is occurring on Mars.
B) Mars is a planet rich in liquid water in the present day.
C) The climate on Mars was different billions of years ago.
D) The polar caps are made of liquid water.

Question

Quizplus · Accepted Answer

The flow patterns and the number of craters suggest that liquid water was present on Mars in the past, indicating a different climate billions of years ago.

Which of the Following Is Suggested by the Flow Patterns