Across
- 3. total value of goods and services produced in a country
- 5. short-term atmospheric conditions
- 6. group of five large freshwater lakes in North America
- 7. lines running east–west that measure distance north or south of the Equator
- 8. measure of quality of life using education income and life expectancy
- 11. release of water vapor from plants
- 12. land deal that doubled the size of the United States
- 13. region defined by climate and characteristic plants and animals
- 14. map projection that preserves direction but distorts size
- 17. warm and wet biome found near the Equator
- 19. measure of changes in the cost of goods and services
- 20. long-term weather patterns in a region
- 21. flat fertile region used primarily for agriculture
- 23. lines running north–south that measure distance east or west of the Prime Meridian
- 27. biome that receives very little rainfall
- 28. agreement dividing new lands between Spain and Portugal
- 29. study of Earth’s physical features and human interaction with the environment
Down
- 1. major river flowing through the central United States
- 2. number of people per unit of land area
- 3. trapping of heat in Earth’s atmosphere by gases
- 4. leader of independence movements in northern South America
- 9. clearing of forests that threatens biodiversity
- 10. imaginary line at 0 degrees longitude passing through Greenwich
- 15. symbolic representation of Earth’s surface
- 16. imaginary line at 0 degrees latitude dividing Earth into hemispheres
- 18. empire that thrived in the Andes Mountains
- 19. Venezuelan leader who used oil revenue to fund social programs
- 21. map projection that preserves accurate land area
- 22. collection of maps
- 24. river forming part of the US–Mexico border
- 25. step-like farming method used by the Inca
- 26. river with the largest volume of water