Plate tectonics may have played a significant role in the oxygenation of Earth's atmosphere. The process of subduction, where tectonic plates move beneath one another, could have sequestered carbon and sulfur into the planet's interior. This removal of these elements is theorized to be a key factor in the rise of atmospheric oxygen over geological time. AI
RANK_REASON The cluster discusses a scientific hypothesis about Earth's geological and atmospheric history, which falls under research. [lever_c_demoted from research: ic=1 ai=0.1]
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