The earth

I explain today the earth.
In here are a lot of different things. But the earth isn't only the superior part who is the best for the humans, because haves the material, who's produce the live.
The earth are a different parts:
The terrestrial crust, mantle, outer core, and inter core.
The terrestrial crust is the part of the earth, who lives the people and the plants, and the live. The very quantities of different types of materials is in this part.
The mantle is the part who haves 2900Km of long, and have a big pression and big temperatures, who the people don't goes never.
The inter and out core of the earth is the little part of the earth, but in here are a material who haves a big quantities of hot materials.
Well, I finish my topic.