Earth has 30% of land and 70% water, humans, animals, air. In the center it is made from metal, dirt, and magma.
In side earth, it has a crust, inner core. The deepest place in Earth is Mariana trench, it is 10,924 deep.
Earth is 12,756km down the center and 510,072,000km across the surface.
Earth is 4.5 billion years old. Its the only place we know that has life