Geography main concepts

3. interconnection of the whole world.
5. variety of life.
6. of people according race, gender or religion.
8. countries have good and stable economy, like US.
10. is one of the steps of WATER CYCLE.
11. When people cannot fill their basic needs.
12. correct use of resources.
18. that helps us to know the population.
19. Refers to the athmospherical conditions in a long term (years, ages)
20. are 5 ________ of geographic space: Politic, social, economic, cultural and natural.
22. of foreign people.
23. four cardinal points are _______, south, east and west.
24. external layer of the earth.
25. poorest continent in the world.

1. the things we need today, taking care of the planet and without compromising the future.
2. lines that runs the same way as the equator.
4. activity that uses animals, husbandry and gets products like meat, eggs and milk.
7. that studies the earth.
9. of people between countries or cities.
13. _____ ______ theory says that the earth is like a puzzle.
14. over the surface of the earth, like mountains, valleys, hills...
15. that runs from pole to pole.
16. used to count people.
17. The world is divided in 24 ______, each one has an hour of the day.
21. at the WEST of Mexico.