Geothermal - The Energy Within
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✎ Suggest a correctionExplores geothermal energy, a vast resource beneath the Earth's crust.
Sources
- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, year, creator, length, format, description
- 16mm Filmography (legacy record) — creator, sound, catalog record
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