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  Sinkholes threatening dead: 50 coffins swallowed in UK graveyard (watch pics)

  World | February 23, 2014 7:32 IST

  New Delhi: According to the US Geological Survey, sinkholes are common where the rock below the surface is limestone, carbonate rock, salt beds, or other kinds of rock which can naturally be dissolved by groundwater

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  Watch in pics: sinkholes across the world

  World | February 20, 2014 6:43 IST

  New Delhi: The heavy rainfall in UK has led to collapse of roads, damaged road, sinkholes etc. The abnormal weather conditions have caused damage to life and property. We take a look at the sinkholes