Answer:
u.s - Appalachian Mountains. The Appalachian Mountains may be some of the oldest mountains on earth. ...
Rocky Mountains. ...
Great Salt Lake. ...
Grand Canyon. ...
Great Plains. ...
Mississippi River. ...
Mojave Desert & Death Valley.
mexico- Physiographic regions. Mexico can be divided into nine major physiographic regions: Baja California, the Pacific Coastal Lowlands, the Mexican Plateau, the Sierra Madre Oriental, the Sierra Madre Occidental, the Cordillera Neo-Volcánica, the Gulf Coastal Plain, the Southern Highlands, and the Yucatán Peninsula.
Step-by-step explanation:
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