User:Bera678/TWA/Earth


 * Science shows that the Earth formed approximately 4.5 billion years ago. Organisms living on Earth have completely changed its weather (atmosphere); this is called the biosphere. 71% of the Earth's surface is covered by saltwater oceans. Currently, the only place in the Solar System where liquid water is known to exist is Earth. The remaining 29% consists of rocky lands in the form of continents and islands.
 * Earth interacts with other objects in the Solar System, especially the Sun and Moon. The Earth orbits or revolves around the Sun approximately every 365.25 days. One revolution around the Sun is called a day, and one revolution around the Sun is called a year. Therefore, there are 365 days in a year, but a leap day is added every 4
 * Earth interacts with other objects in the Solar System, especially the Sun and Moon. The Earth orbits or revolves around the Sun approximately every 365.25 days. One revolution around the Sun is called a day, and one revolution around the Sun is called a year. Therefore, there are 365 days in a year, but a leap day is added every 4