D rocky, with diverse landforms
Mars and Earth have a lot in common. Both planets are terrestrial, meaning they are made of rocks and minerals. They have a similar tilt, giving them both four seasons, and a similar rotation time, so one day lasts about 24 hours. The two planets also have similar surface features, including canyons, valleys, polar ice caps, mountains and volcanoes. In fact, the largest volcanic mountain in the solar system can be found on Mars. It is called Olympus Mons and is three times the size of Mount Everest. There is also water on Mars. The valleys and canyons that cover Mars’s surface suggest that liquid water was once present on the planet. Most of the water on Mars today is frozen year-round.
Which of these best describes Mars’s surface?
A
spongy and wet
B
grassy, with many hills and valleys
C
covered with liquid water
D
rocky, with diverse landforms
1 answer
1 answer