The table shows the thickness, top density, and bottom density of the different layers of the Earth. Thickness (km) Density (g/cm3) Types of Rock Found Top Bottom Crust 30 2.2 2.9 Silicic rocks Upper mantle 720 3.4 4.4 Peridotite Lower mantle 2,171 4.4 5.6 Magnesium and silicon oxides Outer core 2,259 9.9 12.2 Iron+oxygen Inner core 1,221 12.8 13.1 Iron+oxygen Which statement is supported by the information in the table? As depth increases, the density of the layers increases. As depth increases, the density of the layers decreases. As depth increases, the thickness of the layers increases. As depth increases, the thickness of the layers decreases.