Answer :
Final answer:
Karst topography is formed primarily through the dissolution of limestone by carbonic acid. The correct reaction that creates this landscape is carbonic acid reacting with limestone. Other options do not lead to karst features.
Explanation:
Understanding Karst Topography
Karst topography is a distinctive landscape characterized by features such as sinkholes, caves, and springs, primarily formed through the chemical weathering of soluble rocks like limestone. The correct reaction that creates this type of topography involves carbonic acid interacting with limestone. This process occurs when carbon dioxide (CO2) in the atmosphere dissolves in rainwater, forming weak carbonic acid (H2CO3), which can then dissolve limestone over time.
Which Reaction Causes Karst Topography?
Among the options provided:
- OA. Hydrochloric acid with granite - This does not relate to karst formation.
- B. Water with granite - Granite is resistant to weathering and does not produce karst features.
- C. Carbonic acid with limestone - This is the correct answer, as it directly leads to karst topography.
- D. Water with limestone - While water is involved, it is the presence of carbonic acid that plays a crucial role in dissolution.
In summary, the reaction of carbonic acid with limestone is fundamental in creating the unique features associated with karst topography.
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