Curiosity made many interesting discoveries. What was the most interesting?
A Mars was closer to Earth long ago.
B Mars is covered with sand and rock.
C Mars once had flowing water.
D
Mars has valuable minerals.



Answer :

Final answer:

Mars once had flowing water, indicating potential habitable environments and raising questions about the possibility of life on Mars.


Explanation:

Mars once had flowing water, which has been confirmed through various missions like the Mars Exploration Rovers and the Curiosity Rover. The presence of liquid water on Mars in the past indicates the potential for habitable environments and raises questions about the possibility of life on Mars.


Learn more about Mars exploration and water here:

https://brainly.com/question/16409222