9)What Is the long river in South America that winds from Peru through an immense rain forest in northern Brazil, and empties into the Atlantic Ocean? 10)What Is the main mountain range in eastern Mexico-—containing highest peak—that begins south of the Rio Grande?

11)What lake is situated high in the Andes mountains and forms part border between Peru and Bolivia?

12)What is the plain that extends through northern Argentina, Paraguay, and southern Bolivia?

13)What is the grassy plateau located in southern Argentina between Andes Mountains and the Atlantic Ocean?

14)What is the fertile plain that covers most of central Argentina?

15)What is the desert located in northern Chile that is bordered by the Pacific Ocean to the west and the Andes Mountains to the east?

16)What is the vast river basin that covers most of northern Brazil and parts of Bolivia, Peru, Ecuador, Colombia, and Venezuela?