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| Description: Geologic Time Span of time since Earth’s formation Earth is 4.6 billion years old Concept of “recent” is different Geologic Time Scale Divides history of Earth into different units Picture Stats: Views: 321 Filesize: 166.88kB Height: 921 Width: 1103 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39335 |