Which of the following karst landforms is formed by the dissolution of soluble rocks like limestone and creates steep-walled, vertical-sided depressions on the surface?

💡 Solution & Explanation

A sinkhole, also known as a doline, is a classic karst landform created when slightly acidic groundwater dissolves soluble bedrock such as limestone or dolomite, causing the surface layer to collapse. Unlike sinkholes, drumlins are glacial till deposits shaped like inverted spoons, while yardangs and eskers are wind-eroded ridges and glacial meltwater channels respectively.