USGS CMG InfoBank: Convection

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Comment: 03:16 - 03:38 (00:22)
Source: Annenberg/CPB Resources - Earth Revealed - 1. Down to Earth
Keywords: convection, "internal heat engine", earthquake, volcano

Our transcription: The Earth's internal heat engine is powered by heat from radioactive decay deep within our planet.
It drives a process known as "convection" which causes hot material to flow from the interior of the earth slowly toward the cooler surface.
Earthquakes and volcanoes are results of convection.

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