Earth is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to harbor life.
earth spins 24 hours in one day, when the world will revolve 365 day equal to one year. The world is far from the sun about 150 million miles. Moving with speed 30 kilometers per second, or 108 000 kilometers per hour.