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USGS CMG InfoBank: Flow of Groundwater

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Comment: 07:15 - 07:36 (00:21)
Source: Annenberg/CPB Resources - Earth Revealed - 21. Groundwater
Keywords: groundwater, cave, geologist, "water flow", spring, river, "Earth's surface", flood

Our transcription: In places where caves are still flooded, geologists can trace the flow of groundwater by releasing nontoxic dyes that will ultimately reappear at the Earth's surface in the form of springs and rivers.

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