Which rock process creates the underground rivers and sinkholes of the Dinaric karst?
Answer and explanation
Correct answer: D. Dissolving of limestone by slightly acidic rain water
- Step 1: Rain water absorbs carbon dioxide and turns weakly acidic. Step 2. It slowly dissolves limestone and forms caves. Answer: dissolving of limestone. Why not the others: volcanic heat, glaciers and freezing do not form the main karst features.
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