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Summary of Major Events in the Evolution of Life

Summary of Major Events in the Evolution of Life. 18 Billion Years Ago. BIG BANG The universe began with the so called Big Bang, an event about 13 - 18 billion years ago, during which all the matter in the universe was scattered in enormous explosion. 4.6 Billion Years Ago.

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Complete ozone screen - PowerPoint PPT Presentation

Summary of Major Events in the Evolution of Life