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Soil Rocks! Getting to the Dirt on Soil

  • $5.50

An Integrated, Interdisciplinary, Thematic Unit on Soil and the Importance of Soil Conservation Soil is an important natural resource created from bedrock, subsoil, weathering, and decay. Soil is comprised of nutrients and is the basic foundation for plants and animals to grow. Many animals and people are dependent upon plants, which grow in the soil. Soil is made up of humus, silt, rock, clay, and sand. Soil takes a long time to form and therefore, it is essential that it be conserved.