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The top documents tagged [years agoii]
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I. Early Life on Earth Earth formed about 4.6 billion years ago Earth was very hot Atmosphere - little Oxygen. Mostly water vapor, CO, CO 2, and N 2
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Summary Talk Few Body 18 Ivo Šlaus R. Bošković Institute and TUNL, Duke U niversity
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KEY CONCEPT Humans appeared late in Earth’s history
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