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 FoundTopBottomCrust302.22.9Silicic rocksUpper mantle7203.44.4PeridotiteLower mantle2,1714.45.6Magnesium and silicon oxidesOuter core2,2599.912.2Iron+oxygenInner core1,22112.813.1Iron+oxygen
A
As depth increases, the density of the layers increases.B
As depth increases, the density of the layers decreases.C
As depth increases, the thickness of the layers increases.D
As depth increases, the thickness of the layers decreases.