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| Biological Sciences | 2 |
| Environmental Education | 2 |
| Scientific Research | 2 |
| Cancer | 1 |
| Chemical Reactions | 1 |
| Ecological Factors | 1 |
| Ecology | 1 |
| Elementary Secondary Education | 1 |
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| Pollution | 1 |
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| Science News | 2 |
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| Journal Articles | 1 |
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Science News, 1974
The effect that pesticides can have on natural ecosystems is discussed. Specific examples are drawn from microbial ecosystems in estuarine regions. (DT)
Descriptors: Biological Sciences, Ecological Factors, Ecology, Environmental Education
Science News, 1980
Announces a survey prepared by the National Academy of Sciences on the dangers of formaldehyde in the environment. (SA)
Descriptors: Biological Sciences, Cancer, Chemical Reactions, Elementary Secondary Education
