Sinkholes and karst topography are a clear indication that ________.
A)the groundwater is moving through cracks in the rock
B)the groundwater is moving through a limestone and forming caves that periodically collapse
C)the area has been subjected to past meteorite bombardments and groundwater is moving through the fractured rock
D)there is nothing unusual; these features occur everywhere there is fast motion of groundwater in the subsurface

Question

Quizplus · Accepted Answer

Sinkholes and karst topography are a clear indication that the groundwater is moving through a limestone and forming caves that periodically collapse. This process is known as karstification, and it is common in areas with soluble rocks such as limestone, dolomite, and gypsum. As the groundwater dissolves the rock, voids and cavities are created, which can collapse and form sinkholes.

Sinkholes and Karst Topography Are a Clear Indication That ________