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