Geography • Physical GeographyMedium
What is the primary process responsible for the formation of karst topography?
A. Chemical solution of soluble rocks like limestone or dolomite✓ Correct Answer
B. Mechanical abrasion of sandstone by wind-blown sand
C. Thermal expansion and contraction in arid deserts
D. Hydraulic action and cavitation along fast-flowing rivers
💡 Solution & Explanation
Karst topography forms primarily through the chemical dissolution of soluble bedrock such as limestone, dolomite, or gypsum by slightly acidic natural waters containing dissolved carbon dioxide. Alternative processes like wind abrasion create desert landforms, while thermal expansion affects arid rock breakdown without generating sinkholes or caves.
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