Across
- 2. the lines of a map that run north to south
- 6. the number of babies born compared to the total number of people
- 8. the number of years it takes a population to double in size
- 9. the study of Earth and its peoples, places, and environments
- 10. the layer of gases surrounding the earth
- 12. the lines of a map that run east to west
- 14. the location of one place compared to another place
- 16. the average number of people living within a square mile
Down
- 1. the number of deaths compared to the total number of people
- 3. to circle around something
- 4. the exact location of something
- 5. describes an area that is densely populated
- 7. a complete trip of earth around the sun
- 11. a line of latitude that runs around the middle of the earth
- 13. an line that runs through earths center from the north pole to the south pole
- 15. describes an area that is densely populated
