Big Era 3 Environment

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Across
  1. 8. an outbreak of a contagious disease that affects a great portion of the local population
  2. 9. Revolution the initial change from hunting and gathering to the intentional cultivation of domesticated plants and animals
  3. 11. to search widely for food or provisions
  4. 13. wearing away of the Earth's surface
  5. 14. a consequence of domestication
  6. 15. when the amount of people living within given areas is increased
Down
  1. 1. a period of time when the population spread thinly across the major landmasses of the world
  2. 2. the structures and details of the Earth
  3. 3. intentional cultivation of domesticated plants and animals
  4. 4. changing the genetic makeup of plants and animals to make them more useful to humans
  5. 5. extra or leftover goods; excess
  6. 6. clearing an area of trees
  7. 7. Crescent the area around the Tigris and Euphrates rivers with soil better for agriculture than surrounding dry areas
  8. 10. a densely populated, complex society
  9. 12. Thaw the period after the Ice Age characterized by increased global temperatures, shrinking glaciers, and rising sea levels