puzzle

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Across
  1. 4. the practice of breeding and raising livestock for food, labor, and resoruces
  2. 5. the advancement of tools and techniques to improve farming efficency
  3. 7. study of domesticated animals
  4. 8. the practice of breeding animals for food, labor, and materials
Down
  1. 1. materials such as leather, wool, dairy, and more, that come from domesticated animals
  2. 2. the use of irrigation systems to support large scale farming
  3. 3. the ability to store food and trade surplus, leading to ecnomic growth
  4. 6. the rise of organized warfare due to competion for fertile land