Which region is known as a broad expanse of flat land in the central United States?

• A. Great Lakes
• B. Great Plains
• C. Appalachian Mountains
• D. Central Lowlands

Answer: (B)

Think about a vast, flat expanse of land that defines a big belt across the middle of the United States. This landscape is the Great Plains—a huge prairie region lying between the Rocky Mountains to the west and the Mississippi River to the east, stretching from Texas up into Canada. Its hallmark is broad, flat to gently rolling grasslands that support extensive farming and cattle ranching. The other options describe different features: the Great Lakes are large freshwater lakes, the Appalachian Mountains are in the eastern U.S. with rugged terrain, and the Central Lowlands is a broad, lower-lying Midwest area but not the widely referenced central, flat prairie region.