Earth's Human Chores
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✎ Suggest a correctionDescribes chronic contamination of the waterways by increasing industrial effluents and domestic sewage. Illustrates conventional sewage treatment practices and the improvements needed to solve pollution problems. Depicts a modern method of sludge disposal which contaminate neither land, water nor air.
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- 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, creator, length, format, sound, description
- 16mm Filmography (legacy record) — catalog record
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