MARS
It takes 687 days to revolve around the sun . Its surface is covered with craters,volcanoes,and large canyons and it has a very cold atmosphere. It has two moons.
Mars has high mountains and volcanoes and deep valleys
Mars has higher mountains and deeper valleys than Earth.
Mars has the highest mountains (Olympus Mons volcano) and the deepest valley (valles Marineris) in the Solar System.