Physically, the Earth has numerous layers. Chemically, however, the solid portion of Earth can be divided into three distinct layers. In order from the surface going down, they are as follows: 1. The Crust--Major chemical constituents are oxygen, silicon, and aluminum. 2. The Mantle--Major chemical constituents are silicon, oxygen, iron, and magnesium. 3. The Core--Mostly iron and nickel. For additional information on the physicallayers of the Earth, click on the related link below.
mantel and liquid rock
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