Conserving our environment use and reuse : the pollution crisis
The ecological system of a fishbowl depicts in miniature the ecology of the earth, demonstrating the interdependence of plant and animal organisms, and the harmful effects of man's interference with the environment.
| Institution som forfatter: | |
|---|---|
| Format: | Visual Material |
| Sprog: | English |
| Udgivet: |
Northbrook, Illinois
Coronet MTI Film & Video
[1972].
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| Fag: |