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The catastrophic collapse of the ground beneath our feet is a growing worldwide hazard.
★Facebook Page: https://www.facebook.com/FullDocumentaries
★Tumblr: http://fulldocumentary.tumblr.com/
The catastrophic collapse of the ground beneath our feet is a growing worldwide hazard.
Veröffentlicht 9 years ago
Schlagwörter Sinkhole (Geographical Feature Category) Documentary (TV Genre)
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