Geography Final Project by Mike Snoderly
The Precambrian Earth to the present. 4.5 Billions years in 2 weeks! PowerPoint Notes created by S. Koziol Date : 12/30/2013 Revised : ?/?/??
Chapter 22 – The Precambrian Earth Produced by S. Koziol 11-26-2014 The Precambrian covers almost 90% of the entire history of the Earth.
The Precambrian Earth to the present.
