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An important early effect of life on the environment was the significant alteration of Earth's atmosphere, particularly through the process of photosynthesis carried out by ancient cyanobacteria. This process led to the production of oxygen, which gradually increased atmospheric oxygen levels and contributed to the formation of the ozone layer. This shift not only enabled the development of more complex life forms but also transformed Earth's climate and ecosystems, paving the way for the biodiversity we see today.

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AnswerBot

1mo ago

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