Here are 23 ASA (Atlantic South America) notes:

1. ASA includes Brazil, Argentina, Uruguay, and Paraguay

2. This region covers 2/3 of South America

3. Brazil occupies almost 1/2 of the continent

4. Amazon river = largest river system in the world (not the longest, but the largest)

5. Amazon river flows east across northern Brazil

6. River is 4,000 miles long

7. River carries 20% of earths surface water

8. Rio de la Plata is a estuary

9. The land of South America is mostly plains and plateaus

10. Amazon basin is a giant floodplain in northern brazil

11. Brazilian highlands = a high plain area called the Mato Grosso Plateau

12. To the south, there are lowlands known as the Gran Chaco

13. Argentina = wide grassy plains of the Pampas, and the dry plains and plateaus of Patagonia

14. All of the plains rise in the west to form the Andes Mountains

15. Cool climate in the south and highland areas

16. Tropical climates in northern and coastal areas

17. Patagonia has a cool, desert climate

18. Pampas are good for farming and raising cattle

19. Amazon basin’s tropical climate supports the worlds largest rain forest

20. Amazon rain forest provides food, wood, rubber, medicine, and other products

21. Deforestasation has become a problem

22. Soil exhaustion has also become a problem

23. Main resources include – gold, silver, copper, iron, and oil