GENERAL KNOWLEDGE

Detailed explanation-1: -Mars is the fourth planet from the sun.

Detailed explanation-2: -When the solar system settled into its current layout about 4.5 billion years ago, Mars formed when gravity pulled swirling gas and dust in to become the fourth planet from the Sun. Mars is about half the size of Earth, and like its fellow terrestrial planets, it has a central core, a rocky mantle, and a solid crust.

Detailed explanation-3: -Mars, the fourth planet from the sun, is the second smallest planet in the solar system; only Mercury is smaller. Mars is about half (53 percent) the size of Earth, but because Mars is a desert planet, it has the same amount of dry land as Earth.