What conditions promote karst development? Check…

Maths Questions

What conditions promote karst development? Check all that apply: 1) dry climate 2) good groundwater circulation 3) hard rocks near Earth’s surface 4) moderate to heavy rainfall 5) poor groundwater circulation 6) soft rocks near Earth’s surface

Answer

B: good groundwater circulation D: moderate to heavy rainfall F: soft rocks near Earth’s surface. Karst refers to a geological landscape formed through the erosion of soluble limestone by groundwater. The defining features of Karst terrain include caves, sinkholes, sinking streams, and springs, with a notable absence of surface streams. The conditions that foster these characteristics involve well-jointed limestone, which is relatively soft and tends to dissolve easily when exposed to slightly acidic water. Additionally, moderate to heavy rainfall is crucial as it enables rainwater to seep through cracks, contributing to the dissolution of limestone. Good groundwater circulation is also vital, as the ongoing flow of water can further deepen and widen the existing cracks. Therefore, the correct selections are B, D, and F.

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