Roughly 2.4 billion years ago, the atmosphere of the Earth underwent the most consequential chemical...
The oxygen in Earth's atmosphere is essential to almost every animal alive today — but when it first started accumulating in the air roughly 2.4 billion years ago, it triggered the most lethal pollution event in the planet's history, wiping out the vast majority of spec
Roughly 2.4 billion years ago, the atmosphere of the Earth underwent the most consequential chemical change in the planet's history. Free oxygen, a gas that...
Author: Space Daily
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