Chapter 7

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Across
  1. 1. continuous movement of air or water
  2. 7. made practical use of
  3. 9. growing enough for only yourself and your family
  4. 11. plans and tress release water vapor into the air
  5. 12. people who move place to place
  6. 13. hunter-gatherers who live in the Amazon River Basin
  7. 15. people who hunt animals and gather plants and fruit
  8. 16. lived in the eastern and central lowlands on the Paraguay and Parana Rivers
  9. 17. flat field cut into slopes or mountainsides
  10. 19. soak
  11. 20. a variety of species in an ecosystem
  12. 21. plant life
  13. 22. wide open areas used for grazing and crops
Down
  1. 2. a dry region on one side of a mountain range
  2. 3. bridge used to cross canyons or water
  3. 4. clearing trees and burning the land
  4. 5. a relative
  5. 6. modify
  6. 8. blood relationship
  7. 10. gas that traps heat energy
  8. 14. small rivers that drain into larger rivers
  9. 18. located in Venezuela