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landforms
Term | Definition |
---|---|
canyon | A deep valley with steep sides, often with a stream flowing through it. |
floodplain | A nearly flat plain along the course of a stream or river that is naturally subject to flooding. |
Mountain | A natural elevation of the Earth's surface rising more or less abruptly to a summit, greater than a hill, usually greater than 2,000 feet. |
Steppe | An extensive plain, especially one without trees. |
Marsh | A tract of low wet land, often treeless and periodically inundated generally characterized by a growth of grasses, sedges, cattails, and rushes. |
Oasis | A small fertile or green area in a desert region usually having a spring or a well. |
Prairie | A tract of grassland; meadow. |
Plateau | A land area having a relatively level surface considerably raised above adjoining land on at least one side, and often cut by deep canyons. |
Desert | A region so arid because of little rainfall that it supports only sparse and widely spread vegetation or no vegetation at all. |
Valley | An elongated depression between uplands, hills, or mountains, especially one following the course of a stream. |
Delta | A nearly flat plain of alluvial deposit between diverging branches of the mouth of a river, often, though not necessarily triangular. |
Mesa | A land formation less extensive than a plateau, having steep walls and a relatively flat top and common in arid and semiarid parts of the SW United States and Mexico. |