User:Rolex Kaard/TWA/Earth





=Earth= The Earth is the third planet from the Sun. It is one of the four terrestrial planets in our Solar System. This means that most of its mass is solid. The other three terrestrial planets, from closest to farthest from the sun, are Mercury, Venus, and Mars. Earth is the next planet after Mars. The Earth is also known as the Blue Planet, Planet Earth, and Terra.

The Earth is home to millions of species of plants and animals, including humans.

Earth is the planet best suited for life in this solar system; there are ongoing searches for other planets similar to Earth.

Science shows that the Earth formed around 4.5 billion years ago. The organisms that live on Earth have completely changed its air (atmosphere); this is called a biosphere. 71% of Earth's surface is covered in salt water oceans. Earth is the only place in the Solar System where liquid water is known to exist at present. The other 29% is made of rocky land in the shape of continents and islands.

Earth interacts with other objects in the Solar System, particularly the Sun and the Moon. The Earth orbits or goes around the Sun roughly once every 365.25 days. One spin is called a day and one orbit around the Sun is called a year. This is why there are 365 days in a year, but a leap day is added once every 4 years.