If the Earth’s crust contained twice as much iron as it does, would atmospheric oxygen buildup have been slowed down or sped up during the past 2.5 billion years? What would the consequence of this have

If the Earth’s crust contained twice as much iron as it does, would atmospheric oxygen buildup have been slowed down or sped up during the past 2.5 billion years?

What would the consequence of this have been for the evolution of aerobic respiration, the ozone layer, green plants, and animals?

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If the Earth’s crust contained twice as much iron as it does, would atmospheric oxygen buildup have been slowed down or sped up during the past 2.5 billion years? What would the…

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