Complete each statement with the correct word or words.

Question

5. Some caves are ____________, while others contain underground streams and lakes.
6. Most ______________of significant size are formed in limestone by the dissolving activity of groundwater.
7. A depression in the ground caused by the collapse of a cave or by the direct dissolution of bedrock by acidic rain or moist soil is a(n) _______________
8. Limestone regions with sinkholes, sinks, and sinking streams are said to have _____________

Answer 1

5. Some caves are dry, while others contain underground streams and lakes.
6. Most caves of significant size are formed in limestone by the dissolving activity of groundwater.
7. A depression in the ground caused by the collapse of a cave or by the direct dissolution of bedrock by acidic rain or moist soil is a(n) sinkhole.
8. Limestone regions with sinkholes, sinks, and sinking streams are said to have karst topography.