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The top documents tagged [low ice volume]
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low ice volume
The Earth is 4.6 Billion years old This has been broken down into 4 major time periods (Eras). This has been broken down into 4 major time periods (Eras).
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The Earth is 4.6 Billion years old
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Geologic Time Scale. Era Time Period World Events LIFE Nick-name Pre- Cambrian From 4.6 Billon YBP until 570 Million YBP "Shield" Regions of the world.
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