The Earth

The earth is the third planet in the solar system. It is the only planet with a nearly perfect circular orbit of 149,600,000 km radius about the sun.

Earth, the planet of life, is the densest planet in our solar system with an estimated mass of 5.972 x 10^24 kg and a diameter of 12756.3 km.

The shape of earth could be thought of as a sphere with seven layers having unique geological and chemical properties.

The formation of these layers can be traced back to the various activities that evolved the earth into its present form.