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Soil
Soil review questions
Term | Definition |
---|---|
Loam | This type of soil is a mixture of sand, silt, and clay. |
Clay | Soil with the smallest particles. |
Sand | Soil with the largest particles. |
Horizon | Another name for a layer of soil. |
Topsoil | This layer of soil contains humus, plants, and animals. |
Subsoil | This layer of soil contains little humus, small rocks, and long tree roots. |
Bedrock | This layer of soil contains large rocks and no humus. |
Soil | This consists of rock particles, water, air, and humus. |
Humus | Decomposed organic material. |
Nutrients | Humus contains a lot of this that plants and animals need to grow. |
Permeability | How easily water flows through soil. |