Answer :
The layers of the earth differ by their density.
Earth is made up of three different layers: crust, mantle, and core. These layers are of varying distances from the surface of the earth. These layers also vary in their physical and chemical properties.
The crust is the outermost layer of the earth. It is very thin, composed mainly of salts and minerals. It can be a continental crust or an oceanic crust.
The mantle is the thickest layer, it is composed mainly of rocks. The core is the innermost structure of the earth. It is divided into outer and inner cores. The core is very high in temperature.
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