Answer:
Mountains, hills, plateaus, and plains are the four major types of landforms. Minor landforms include buttes, canyons, valleys, and basins. Most geologists classify a mountain as a landform that rises at least 1,000 feet (300 meters) or more above its surrounding area. A hill is a landform that is higher than the surrounding land and has a visible summit; they're like mountains, only shorter. A plateau is a flat, elevated landform that rises sharply above the surrounding area on at least one side. A plain is a broad area of relatively flat land.
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The continental divide mostly doesn't separate the territories of the United States and Canada.
Explanation:
Across the North American continent there are several continental divides. When the term continental divide is used, mostly it is used for the great continental divide. The great continental divide runs along the eastern part of the continent, and with its stretching in roughly north northwest-south southeast, it doesn't form the boundary of the United States and Canada.
Apart from the great continental divide, the other five are:
- Laurentian
- Arctic
- St. Lawrence
- Eastern
- Great Basin
Part of the boundary between the United States and Canada is indeed formed by some of the divides, namely the Laurentian and St. Lawrence, but they occupy such small parts of the border that makes it totally insignificant, and it is more of an intersection, that actually having a continuity.
Learn more about the boundary of the North American and Pacific plates brainly.com/question/9330115
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That the period squared is proportional to the radial distance cubed.