The table represent the thickness, top density, and bottom density of the different layers of the Earth. In most of the layers, the deeper the layer, the thicker and denser the layer becomes. 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
At which location in Earth’s interior exhibits a change in the trend?