Answer:
1- The Pacific Coast Ranges
2- The Intermontane Plateaus
3- The Rocky Mountains
4- The Great Plains
5- The Atlantic Plains
6- The Appalachian Mountains
Explanation:
1- The Pacific Coast Mountains are a series of mountain ranges that extend from Alaska to southern Mexico. They were created by plate tectonic forces when the Farallon plate crashed into the North American plate, raising fold mountains.
2- The Intermontane Plateaus lie in the west of the country, between the Rocky Mountains and the Pacific Mountain system.
3- The Rocky Mountains are a large high mountain range in western North America. The Rockies cover an area more than 3,000 miles in length from New Mexico through the United States to the far north of British Columbia in Canada. The mountain range lies between the Great Plains on the east side and has a series of basins and depressions on the west side. It forms the Continental Divide, the watershed between the rivers that flow into the Atlantic Ocean and the Arctic Ocean on the one hand and into the Pacific Ocean on the other.
4- The Great Plains are a foothill plateau in the United States and Canada, east of the Rocky Mountains, in the territories of the Canadian provinces of Alberta, Manitoba and Saskatchewan and the US states of New Mexico, Texas, Oklahoma, Colorado, Kansas, Nebraska, Wyoming, Montana, North Dakota and South Dakota.
5- The Atlantic coastal plain is a coastal strip on the Atlantic coast of the United States. It extends from the Hudson Estuary in New York City to the the Mississippi Delta in Louisiana. In the north, the coastal plain is narrow and rich in bays. To the south it spreads swampy to the Gulf of Mexico and Florida. In the west, the Atlantic coastal plain is bordered by the Appalachian Mountains and the Piedmont.
6- The Appalachians are a low mountain range in eastern North America with rounded top zones. The Appalachians are mainly located in the United States from central Alabama but extend into Newfoundland, Canada and consist of a number of parallel chains with different names. The mountain ranges run mainly along two parallel lines that enclose a wide longitudinal valley, the Great Appalachian Valley.
