Which formation is one feature of karst topography? caves
kettles
meanders
oxbow lakes

Meanders?

Explanation:

caves, Karst describes a distinctive topography that indicates dissolution. Karst terrains are characterized by the presence of caves, sinkholes, sinking streams, and springs. Understanding caves and karst is important because as much as a quarter of the world's population depends upon freshwater supplied from karst areas.

Explanation:

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The answer is A. Caves

Explanation:

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.