GENERAL KNOWLEDGE

Detailed explanation-1: -The Earth is sometimes called “the third planet” because it is the third planet in distance away from the Sun. As you can see from the picture below, in our Solar System, Mercury is closest to the Sun, followed by Venus, then Earth and then Mars.

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

Detailed explanation-3: -Uranus, the third largest planet in our solar system, may be the strangest because it spins on its side. That severe tilt to its rotational axis may result from a great collision long ago. As the seventh planet from the Sun, Uranus takes 84 years to complete an orbit. It is a “gas giant” with no solid surface.