20 The Horizon is the substratum or regolith It is lighter

Last updated: 5/23/2023

20 The Horizon is the substratum or regolith It is lighter in color and is unconsolidated earth material This This layer is considered the bottom layer of the soil 1 Point SOIL LAYERS O HORIZON Surface Litter A HORIZON Topsoil E HORIZON Zone of leaching B HORIZON Subsoil C HORIZON parent material BEDROCK O A O E