Soil

1. is made of

1.1. organic matter

1.2. weathered rocks

1.2.1. sand

1.2.2. silt

1.2.3. clay

2. types

2.1. Desert Soil

2.2. Forest Soil

2.3. Grassland Soil

2.4. Tropical Grassland

3. Layers

4. desriptions

4.1. Color Brown, Yellowish,Grayish

4.2. Consistence Friable, Bose

4.3. Texture Soft, Hard