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The top documents tagged [origin of lifeorigins]
Fossil Evidence of Change Land Environments The History of Life Section 1 Earth formed about 4.6 billion years ago. Gravity pulled the densest elements
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Click on a lesson name to select. The History of Life Section 1: Fossil Evidence of Change Section 2: The Origin of Life
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The History of Life 14.1 Fossil Evidence of Change Land Environments The History of Life Chapter 14 Earth formed about 4.6 billion years ago. Gravity
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