Question on: SS3 Geography - Karst (Limestone) Topography
What causes the dissolution of soluble rocks in karst regions?
View related lesson
A
Wind erosion
B
Chemical reaction with water
C
Earthquakes
D
Volcanic activity
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Correct Option: B
The dissolution of soluble rocks in karst regions is primarily caused by a chemical reaction with water. Specifically, slightly acidic water, often containing dissolved carbon dioxide, reacts with the calcium carbonate (or other soluble minerals) in the rock (like limestone), causing it to dissolve. This process is known as chemical weathering.
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