The Aging of lakes
Encyclopaedia Britannica Educational Corporation
EducationNatureIndustrial and advertising
Clips are not offered for this film: no licence or public-domain mark is recorded for it.
Low resolution (640×360): this is the archive's own copy.
Parts
About
Traces the aging process of lakes, showing how man's interference with the environment causes critical changes in the natural ecology. Describes efforts to preserve and restore damaged lakes.
Search Educational Film Journals at Media History Project for references to this film
- Archive
- Internet Archive, in Educational films
- Licence or status
- The Internet Archive states none for this item.
- Credit
- Encyclopaedia Britannica Educational Corporation
- Language
- English
- Subtitles
- English
- Who can watch
- The archive gives no rating. Invisible Network shows it to Kids profiles and older, judged from its collection and subjects. How films are placed