science

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Across
  1. 2. an imaginary line
  2. 4. geographic information system
  3. 6. the change in elevation from one line to the next
  4. 8. imaginary line that makes a half circle
  5. 9. every 5th line they are darker
  6. 10. a half of a sphere
  7. 11. global positioning system
Down
  1. 1. distance in degrees north or south
  2. 2. high above sea level
  3. 3. connects point of equal elevation
  4. 5. distance in degrees east or west
  5. 7. a map showing the surface features