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Key Terms - Landforms & Geologic Material
- Landforms
- Natural features of a land surface including river channels and Valleys
- Geologic Material
- Solid inorganic substratum of the earth that affects geomorphological processes
- Valley
- A relative low area or depression on the earth surface whose form is changed by water under the force of gravity
- Located between two adjacent uplands
This image shows the aerial pattern of river formed earth surfaces with an emphasis on Valley and ridge features.
Image courtesy of NASA
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