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The top documents tagged [geologic time chart]
Lesson 13 Teaching With Visual Symbols (EDUC Subject, can't remember)
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*** N.B. The material presented in these lectures is from the principal textbooks, other books on similar subject, the research and lectures of my colleagues
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Plant Fossils Animal Fossils What are fossils? Fossils are the remains (or traces) of dead plants or animals from long ago that have been preserved
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