Major Natural Regions

1. Equatorial Lowland -Amazon Type

2. Equatorial Highland -Malay Type

3. Equatorial High Plateaus -Ecuador Type

4. Tropical Eastern Margin -Monsoon Type

5. Tropical Interiors -Sudan Type

6. Tropical Western Deserts -Sahara Type

7. Warm Temperate/Subtropical Western Margins- Mediterranean Type

8. Warm Temperate/Subtropical Eastern Margin- China Type

9. Warm Temperate/Subtropical Interior Lowland -Turan Type

10. Warm Temperate/Subtropical Interior Plateau -Iran Type

11. Cool Temperate Western Margin -European Type

12. Cool Temperate Eastern Margin -St. Lawrence Type

13. Cool Temperate Interior Lowland -Prairie Type

14. Cool Temperate Interior Highland -Altai Type

15. Cool Temperate High Plateau- Tibet Type

16. Polar Lowland -Tundra Type

17. Polar Highland- Ice Cap Type