SS L to J 1-20 puzzle

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Across
  1. 4. An area of land that is enclosed or nearly enclosed by land
  2. 5. a system of writing
  3. 6. Lines of latitude
  4. 8. a model of Earth shaped like a sphere or ball
  5. 10. Directions The four major directions: north, south, east, and west
  6. 12. Lines of longitude
  7. 14. The group of forty-eight states that are linked together
  8. 15. Belief in one god
  9. 16. a person who makes maps
  10. 17. One who travels for survival; group that moves from place to place
  11. 18. The distance east or west of the Prime Meridian measured in degrees
Down
  1. 1. a complex society with government, art, writing, and religion
  2. 2. Worship of many gods
  3. 3. a pyramid-shaped temple tower
  4. 7. Form of government; one ruler controls several kingdoms
  5. 9. The distance north or south of the Equator measured in degrees
  6. 11. Part of a map that shows what distances on the map stand for in actual distances
  7. 13. The imaginary line that goes around the middle of Earth. It divides Earth into the Northern and Southern Hemispheres
  8. 14. a group with the same social status
  9. 16. a symbol that shows cardinal and intermediate directions