Soil
da Lyz Smith
1. Is made of
1.1. Weathered Rocks
1.1.1. Sand
1.1.2. Silt
1.1.3. Clay
1.2. Organic Matter
1.2.1. Organic matter is a key ingredient to helping plants grow
1.2.1.1. It breaks down into nutrients
1.2.1.1.1. There are 3 types or nutrients
2. Layers
2.1. Bedrock
2.2. Sub Soil
2.3. Top Soil
2.4. Parent Material
3. Types of soil
3.1. Grassland
3.1.1. Tropical Grassland
3.2. Forest
3.2.1. Desert