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Sixteen giant sinkholes have opened up in one Turkish region within months after a drought caused limestone to collapse.
Images show the vast holes in a field at Konya Valley which formed in the first nine months of this year.
Sinkholes are depressions in the ground with no natural external surface drainage. When it rains, all of the water stays inside and typically drains into the subsurface.
The craters most often occur in ‘karst terrain’ where rock below the land surface is naturally…
