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												Information on the earths atmosphere. What types of gases are found in a pie chart. Earth 
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												Simply put, a fossil is the remains or evidence of any creature or plant that once lived on the Earth. 
Now let's look at the long answer.
 Fossils-Facts-and-Finds 
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												Timeline showing the geological evolution of Earth, with brief explanations of each period The Geological Evolution of the Earth 
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												An animated view of the Earth as it goes through each era with continental drift. Berkley 
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												Excellent interactive tool for a review of of various geologic eras, as well as the formation and structure of the earth and it's atmosphere. Smithsonian Department of Paleobiology 
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