Environmental Science Unit 12 Vocabulary

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Across
  1. 4. a computerized system for storing, manipulating, and viewing geographic data
  2. 7. the process by which land in arid or semiarid areas becomes more desert-like because of human activity or climate change
  3. 9. the process by which trees are planted to re-establish trees that have been cut down
  4. 11. Movement of people from rural areas to cities
  5. 12. the surface layer of soil which is usually richer in organic matter than the subsoil
  6. 13. damage to rangeland that comes from allowing more animals to graze in an area than the range can support
  7. 14. land that contains relatively few people and large areas of open space
  8. 15. rapid expansion of a city into the countryside around the city
Down
  1. 1. land that can be used to grow crops
  2. 2. partly decomposed organic material
  3. 3. the increased temperature in a city
  4. 5. determining in advance how land will be used
  5. 6. the things that a society builds for public use
  6. 7. the clearing of trees from an area without replacing them
  7. 8. land that is covered mainly with buildings and roads
  8. 10. an area in which the land and the ecosystem it supports are protected from exploitation