A Brief History of Geologic Time
By PBS EonsFrom boclips.com
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By looking at the layers beneath our feet, geologists have been able to identify and describe crucial episodes in life's history. These key events frame the chapters in the story of life on earth and the system we use to bind all these chapters together is the Geologic Time Scale.
Tags
Explainer
Life Sciences
Biology
Physical Sciences
Astronomy
Geography and Earth Science
History
Advanced Secondary
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