UNIT 6 CROSSWORD

12345678910111213141516171819202122232425262728
Across
  1. 2. bred and managed for human use
  2. 4. the clearing of trees from an area without replacing them
  3. 5. chemicals used to kill insects, weeds, and other crop pests
  4. 6. the amount of food that can be produced in a given area
  5. 9. rapid expansion of a city into the country side around the city
  6. 12. the resources that are produced by natural and artificial ecosystems
  7. 14. the type and amout of food a person eats
  8. 15. the movement of rock and soil by wind and water
  9. 16. catching or removing from a population more organisms than the population can replace
  10. 18. widespread starvation by shortage of food
  11. 19. cud chewing mammals that have 3 to 4 stomachs
  12. 20. use of living organisms to control pests
  13. 25. the increase temperature in a city
  14. 26. domesticated animals raised to be used on farms and sold for profit
  15. 27. land that is covered mainly with buildings
  16. 28. soil the surface layer of soil
Down
  1. 1. the process of which land in arid or semiarid areas become more desert like
  2. 3. a condition that occurs when people don't consume enough calories
  3. 7. determinig in advance how land will be used
  4. 8. the raising of aquatic organisms for huma use or consumption
  5. 10. an area in which the land and the ecosystems it supports are proteced fromfrom all exploitation
  6. 11. genetic material in a living cell is modified for medical or industrial use
  7. 13. the accumilation of salts in soil
  8. 17. land that contains relatively few people and large areas o space
  9. 21. allowing more animals to graze in an area than the range can suport
  10. 22. a computarized system for sorting,manipulating, and viewing geographic data
  11. 23. trees are planted to re-establish trees that have been cut down in forest land
  12. 24. partly decomposed organic material