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Elanso [62]
4 years ago
5

Until the early There were only negligible amounts of free oxygen in the atmosphere

Geography
1 answer:
Svet_ta [14]4 years ago
3 0
Until the early Proterozic there were only negligible amounts of free oxygen in the atmosphere
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Which of the following ocean-floor features is associated with areas where oceanic crust is broken down?
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The best and most correct answer among the choices provided by your question is the third choice.

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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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hope this helps!!
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