Documents History of the Earth. 5 billionEarth is believed to be about 5 billion years old Little available...

Slide 1History of the Earth Slide 2 5 billionEarth is believed to be about 5 billion years old Little available atmospheric oxygen at this time 3.9ish billionFirst life on…

Documents The History of Life The record and origin of life.

Slide 1The History of Life The record and origin of life Slide 2 History of the Earth 5 billionEarth is believed to be about 5 billion years old Little available atmospheric…