Which mechanism most directly causes cave formation in karst landscapes?

💡 Explanation

Cave formation primarily initiates from the carbonic acid dissolution mechanism; rainwater absorbs CO2, becoming a weak carbonic acid that dissolves limestone bedrock. Therefore, caves enlarge through this process, rather than from tectonic forces, glacial erosion, or igneous activity.

• Which mechanism causes increased stream meandering in a region experiencing decreased vegetation density?
• Which mechanism causes localized crustal thinning at continent-continent convergent boundaries after initial collision?
• Which air mass behavior results along boundaries between atmospheric circulation cells?
• Which outcome results after permafrost degradation from solifluction?
• Which outcome arises when volcanic ash deposition disrupts pedogenesis?
• Which mechanism causes increased channel sinuosity when stream discharge falls below average?