Understanding sinkholes

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Understanding sinkholes

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Understanding sinkholes

by CBSTV Videos 7:36 mins

Understanding sinkholes

by CBSTV Videos 7:36 mins

When a cavity in the subsurface of the Earth collapses, it's called a sinkhole. They swallow cars and homes, even entire neighborhoods. Most occur naturally, but some are man-made accidents. Mark Strassmann talks to researchers about the science of sinkholes, and to homeowners who face a looming disaster.

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