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Ancient bones from Ireland reveal that farming has changed nitrogen composition in land for the last 3,000 years.
Original Article: Even in the Bronze Age, Humans Altered Soil ChemistryNEXT ARTICLE
Arthroplasty Joint Disorders Orthopedics Spinal Cord Disorders Orthopedics is the science or practice of correcting deformities caused by disease or damage to the bones and joints of the skeleton. This specialized branch of surgery may ...