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26 March, 00:26

How does a sinkhole form?

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Answers (2)
  1. 26 March, 02:04
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    Sinkholes are formed when the land surface above collapses or sinks into the cavities or when surface material is carried downward into the voids.
  2. 26 March, 03:15
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    Sinkholes mainly occur in what is known as ‘karst terrain’; areas of land where soluble bedrock (such as limestone or gypsum) can be dissolved by water. With cover-subsidence sinkholes, the bedrock becomes exposed and is gradually worn down over time, with the holes often becoming ponds as the water fills them in.
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