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Vocabulary

  • Clay soil: Soil that is mostly clay, a little sand and humus. Not good for growing
  • Forensic geologist: A scientist who examines soil samples in a criminal investigation and determines their sources
  • Humus: Dead plant or animal material that makes soil fertile
  • Loam: Soil that contains the right amounts of gravel, sand and clay. It also includes a great deal of humus, so it is good for growing. Usually dark brown or black
  • Sandy soil: Soil that is mostly sand, a little clay and no humus. Not good for growing