geography crossword

10. the layer of magma that the tectonic plates shift on
12. the section of a text that gives definitions
13. the ratio of kilometres on a map to kilometres on the earth
14. the molten centre of our planet that's responsible for the magnetic fields
15. the outer most layer of the earth
16. a graph that shows the number of people according to age and gender
17. how the population of a country is spread
19. mainly used to find your position in the world
20. the number of people born subtracted by the number of people who die
22. fast, low density expansion at the edges of cities
23. what entices someone to come to a country
24. a chain of countries and regions that experience an above average number of volcanoes and earthquakes
25. the number of people who die per thousand people

1. branch of science that deals with the collection, analysis, and interpretation of data relating to the earth's surface.
2. power generated by funneling water through a dam
3. the building heat inside of the atmosphere
4. a kind of graph used to plot average temperature throughout the year
5. the number of people born per thousand people
6. the explanation of earthquakes tsunamis and volcanoes and why some continents look like they fir together
7. power generated using radioactive materials to heat water
8. uses the heat of magma pockets to generate power
9. the natural process of land formations being worn down over time by water and wind
11. a resource that is found naturally in the environment
18. what forces someone out of a country
21. an imaginary line around the middle of the earth