Final answer:
Caves are one feature of karst topography, which is formed when soluble rocks like limestone are dissolved by groundwater.
Step-by-step explanation:
One feature of karst topography is caves. Karst topography is formed when soluble rocks such as limestone are dissolved by groundwater, leading to the formation of caves, sinkholes, and other distinct landforms. Caves are natural underground formations that are typically formed by the dissolution of limestone over a long period of time.
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