What is the major river in the northern portion of South America that winds from Guiana Highlands to the Atlantic Ocean?

What is the long river in South America that winds from Peru through northern Brazil and empties into the Atlantic Ocean?

What is the estuary (place where a river meets the sea) on the southeast coast of South America formed by the meeting of the Parana and Uruguay Rivers?

What mountains in the western portion of South America run roughly parallel to the Pacific Coast for more than 5,000 miles?

What is the main mountain range in western Mexico that runs roughly parallel to the Pacific Coast?

What are the highlands in the northern portion of South America that separate Venezuela, Suriname, and French Guiana from Brazil?

What is the narrow strip of land that connects Central and South America?

What is the huge plateau that covers most of central Mexico and is surrounded by mountains?

What is the large peninsula in Mexico that extends into the Gulf of Mexico?

What is the main mountain range in eastern Mexico that begins south of the Rio Grande?

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

What lake is located high in the Andes Mountains and forms part of the border between Peru and Bolivia?

What is the large lake located in southwest Nicaragua that drains into the Caribbean Sea?

What is the chain of islands located at the southern tip of South America and divided between Chile and Argentina?

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

What is the plain that covers most of central Argentina?

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?

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

What is the large lake in the northern tip of South America that has a small opening into the Atlantic Ocean?