control of the government of a state, community, or other body by its own members; democratic government. the condition of being self-governed.
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, after Mercury. Named after the Roman god of war, it is often referred to as the Red Planet because the iron oxide prevalent on its surface gives it a reddish appearance.
Mars is ten times less massive than that of Earth. It is the second smallest planet in the Solar System. The mass of Mars is 7.08 x 1020 tons or 6.42 X 1020 metric tons. Mars total density is 3.933 grams/cubic centimeter. The diameter of Mars is 6,792 kilometers. To illustrate these characteristics, Mars density is similar to that of the Earthâs moon.