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Question
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
Answer
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