Final answer:
Karst topography is the dissolution of limestone that creates caves, sinks, and karst towers.
Rainwater mixed with carbon dioxide forms carbonic acid, which reacts with the limestone and erodes it over time.
Step-by-step explanation:
Karst topography is the dissolution of limestone which creates caves, sinks, and karst towers.
Limestone is a rock that is made up of calcium carbonate (CaCO3) and is highly soluble in acidic water.
When rainwater mixes with carbon dioxide in the atmosphere, it forms carbonic acid, which reacts with the limestone, causing it to break down and dissolve. Over time, this process creates large cave systems, sinkholes, and unique landforms known as karst towers.