history

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Across
  1. 2. a community lying on the fringes of a metropolitan area
  2. 4. introduces the concept of democracy
  3. 7. the main river system in the USA
  4. 8. grazing so heavily that the vegetation is damaged and the ground erodes
  5. 9. the movement of weathered rock by wind, glaciers, and moving water
  6. 13. movement of people from rural areas to cities
  7. 17. where civilizations started
  8. 18. shows for detail than a globe
  9. 19. all the water areas on Earth
  10. 22. the part of Earth where life exists
  11. 23. process in which arable land becomes desert. the destruction of land in arid and semiarid climates
  12. 25. a member of wandering pastoral people
  13. 26. an ancient Egyptian writing system in which pictures and symbols represent words or sounds
  14. 27. flat landscape east of the Rockies
  15. 28. natural mineral containing chemical compounds often used in fertilizers
  16. 30. another name for a mapmaker
  17. 31. this is 0 degrees latitude
  18. 32. process of removing salt from sea water
  19. 35. repayment for war damages
  20. 37. an extremely dry area that supports few plants or animals
  21. 40. a type of map that shows boundaries of countries or states
Down
  1. 1. elevation above which it is too cold for trees to grow
  2. 3. belief in the right of each people to be an independent nation
  3. 5. the event where the Germans killed over 6 million Jews in WWII
  4. 6. the Industrial Revolution started here
  5. 10. belief in one God
  6. 11. this layer of gases that surrounds the Earth
  7. 12. a dry grassland that has warm summers and harsh cold winters
  8. 14. person believed to be a messenger from God
  9. 15. to adapt plants and animals from the wild for human use
  10. 16. early cities developed near these
  11. 20. what we call the United States
  12. 21. borrower gives up rights to a property due to inability to repay the loan
  13. 24. a group or chain of islands
  14. 29. got control of Germany after WWI and was the main bad guy of WWll
  15. 33. the Soviets promoted this set of beliefs
  16. 34. rotation of water from ocean to air to ground and back to the ocean
  17. 36. where the Renaissance started
  18. 38. location identification of one place by referring to another place
  19. 39. in Islam a house of worship