World Geography.

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Across
  1. 3. The flat treeless lands forming a ring around the Artic ocean.
  2. 5. A storm that forms over warm, tropical clean waters.
  3. 6. the spread of ideas, inventions, or patterns of behavior to different society.
  4. 7. east or west of the equator.
  5. 9. complete seperation of races.
Down
  1. 1. Mandela/ leader of the ANC.
  2. 2. north or south of the equator.
  3. 4. permanently frozen ground.
  4. 8. regional ecosystem.
  5. 10. organic material in soil.