Layers+of+the+Earth

Above the atmosphere, we have a layer of gas that we call air, comprising a series of layers, which works as a protective shield of the planet, in turn keeps the temperature and allows life. In crevices and low-lying areas of the cortex, water, lots of liquid and, at the Poles, water ice. Below the crust, a series of layers in dough, very hot, and a density increasing until you reach the core of the Earth, again, solid, metallic, dense,...