12.1 Soil ~ Env. Sci

Soil is made of

• weathered rocks and minerals
• dead plants and animals
• air and water
• all of the above

Layers of soil are also known as:

• Soil Profiles
• Soil Horizons
• Soil sheets
• Soil cores

What is the layer of soil that contains humus, leaf litter, and other organic matter?

• O - Organic
• A - Topsoil
• B - Subsoil
• R - Bedrock

Which factor does not influence soil formation?

• climate

• time

• parent material

• atmosphere

Which one is not a process in which soil is formed?

• physical weathering

• deposition

• decomposition

• texturation