The habitability of the early Earth was affected by various factors. We focus here on atmospheric oxygen (O2) and methane (CH4). O2 is essential for supporting eukaryotic life, including plants […]
Philosophical Transactions B via PubMed
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What The Earliest Evidence For Life Tells Us About The Early Evolution Of The Biosphere
Life emerged on Earth in an ultramafic world under anaerobic conditions and conditioned by particular environmental characteristics for which no record remains.