User:Louisiana291/TWA/Earth





=The Earth = The Earth is the third planet from the Sun. It is one of the four terrestrial planets in our Solar System. This means most of its mass is solid. The other three are Mercury, Mars, and Venus. The Earth is also called the Blue Planet, Planet Earth, and Terra.

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

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 earths surface is covered in salt water oceans.earth is the only place in the solar system where liquid water.b4y6ghrgrgfncfyjcfj.