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how did the formation of free oxygen from photosynthesis and the development of the ozone layer stop abiogenesis
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how did the formation of free oxygen from photosynthesis and the development of the ozone layer stop abiogenesis

User Mon
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This solar energy conversion process is known as photosynthesis. ... At this time, the oxygen level was approximately 10% of its present atmospheric concentration. ... The presence of ozone enabled organisms to develop and live on the land.

User Jonathan Swartz
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