ecosystems - soils, a simple introduction to soil profiles

1. SOILS a brief introduction A soil is the upper layer of weathered rock combined with organic matter or humus added by the vegetation A soil forms from a parent material of underlying rock or deposit Look honey It’s a SOIL !!

2. THE SOIL PROFILE A soil develops a profile or vertical structure that depends on :_ The parent material Climate Vegetation

3. A very simple system As easy as A B C !!