How do sinkholes form?

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Massive karst sinkholes discovered in NW China

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Inside China's mysterious sinkhole – BBC REEL

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Large Karst Formation Discovered in Yunnan, China

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Ancient Forest Discovered In A Giant Sinkhole In China!

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Giant karst sinkhole discovered in China's Guangxi

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Formation of Karst Landscapes

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What is the biggest karst in the world?

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Huge karst cave with stalactites and stalagmite discovered in central China

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South China Karst (UNESCO/NHK)

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Giant karst sinkhole with its forest discovered in China

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Karst in Ohio

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Incredible footage captures fascinating Karst cave in China

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Aerial view: giant karst sinkholes found in NW China

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Researchers Discover 54 Giant Karst Sinkholes in 5,000 Square Kilometer Area in Northwest China

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How Groundwater Moves in the Karst Landscape (A Short Animation)

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Huge karst Prometheus Cave in Georgia.

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30th giant karst sinkhole discovered in south China's Guangxi

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Ask a Geologist: What is Karst?

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Exploring unknown creatures in South China Karst

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