What are sinkholes?
Sinkholes are common in the UK also.
The news from Florida about the house that disappeared underground,brings to light a strange geological phenomenon.
http://www.guardian.co.uk/world/2013/mar/04/what-causes-sinkholes-florida-man
| National Geographic |
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| Sinkholes like this one in Guatemala City in 2010 (gizmodo.com) |
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