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use this timeline to organize your work for your oral presentation. Don't forget to use all the documents or videos.

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The first atmosphere : 4,55 billion years ago

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The first atmosphere : 4,55 billion years ago

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group1

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The oceans and the moon: 4,53 to 4,5 billion years ago

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The oceans and the moon: 4,53 to 4,5 billion years ago

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group2

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The hadean eon: 4,5 to 3,8 billion years ago

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The hadean eon: 4,5 to 3,8 billion years ago

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group3

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The archean eon: 3,8 to 2,5 billion years ago

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The archean eon: 3,8 to 2,5 billion years ago

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group 3

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doc1

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group 4

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doc2

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The great oxidation: 2,4 billion years ago

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The great oxidation: 2,4 billion years ago

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group 5

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Banded iron formations (BIF's) : evidence of oxygen in early atmosphere

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Banded iron formations (BIF's) : evidence of oxygen in early atmosphere

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are sedimentary mineral deposits consisting of alternating beds of iron-rich minerals (mostly hematite) and silica-rich layers (chert or quartz) formed about 3.0 to 1.8 billion years ago

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Snowball Earth: 2,4  to 2,2 billion years ago

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Snowball Earth: 2,4  to 2,2 billion years ago

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group 6

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explain the greenhouse effect

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The Phanerozoic eon : 542 million years ago

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The Phanerozoic eon : 542 million years ago

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group...