According to recent geochemical discoveries, Earth’s ‘Great Oxidation Event’ occurred over a period of 200 million years
This article was reviewed according to Science fact checked peer-reviewed publication trusted source proofread OK! Credit: CC0 Public domain × close to Credit: CC0 Public domain About 2.5 billion years ago, free oxygen, or O2first began accumulating to meaningful levels in Earth’s atmosphere, paving the way for the emergence of complex life on our evolving … Read more