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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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Peer reviewed Peer reviewed
ERIC Number: EJ107950
Record Type: CIJE
Publication Date: 1974
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
The Effect of Sulfur Dioxide on Lichens: A Field Activity
Mathis, Philip M.
American Biology Teacher, 36, 7, 418-419,422, Oct 74
Descriptors: Biological Sciences, Botany, Pollution, Science Activities, Secondary School Science, Student Projects
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Lichens; Sulfur Dioxide