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Science Data Representation Questions: Strategies and Sample ...
(from earliest). Length of time. (in millions of years). Development of life. ( examples). Figure 1. Era: Azoic, Archeozoic, Paleozoic Mesozoic Cenozoic. Proterozoic .
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Changes in the Earth's Climate for the Past Two Million Years
Two examples of this were glaciations that occurred during the Ordovician and the Carboniferous periods of the Paleozoic era. It is thought that these periods of .