The difference between the Grand Canyon and the Valles Marineris is:

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Quizplus · Accepted Answer

All of the statements are true differences between the Grand Canyon and the Valles Marineris. The Grand Canyon was primarily formed by water erosion, specifically by the Colorado River. The Valles Marineris on Mars is significantly larger than the Grand Canyon, being the largest canyon in the Solar System. It has tectonic features indicating it was formed by the stretching and cracking of the Martian crust, and it also has craters, which are common on the surface of Mars due to its thin atmosphere allowing more meteorites to strike its surface.

The Difference Between the Grand Canyon and the Valles Marineris