Because it has a large number of acids in it's soil which give it the red color
Mercury
Probably Mars
Why not. Something has to be Mars is the 7th largest planet in the solar system because 6 other planets in the solar system are larger than Mars.
Mars has the biggest mountain than the others and deeper canyons than the other planets
Earth is much bigger than Mars Earth's diamater is 12,756km, while Mars' diamater is 6,787kmEarth
Mars is very cold because it is farther from the sun than other planets.
Mars has a moon that is larger than the other one.
The planet that is further from the Sun than Earth but closer than Jupiter is Mars. Mars is the fourth planet from the Sun, situated between Earth and Jupiter.
Mercury Venus and Earth are all closer to the sun than mars
No.
Mars is not "livable". There are no planets in the solar system that are livable without artificial environments.
Mars has the biggest mountains in the solar system, with Olympus Mons being the largest. Valles Marineris on Mars is one of the deepest canyons in the solar system, making Mars the planet with both bigger mountains and deeper canyons than any other planet.