be-smart 1 year ago
Be Smart #Science

Be Smart | The Deadly Chemistry That Made Life Interesting

Life’s been around on Earth for at least 3.7 billion years. But for most of that time, it was incredibly boring - just simple little cells squirming around in water. It only got interesting in the last few hundred million years.

And that might never have happened without the help of a deadly, but also life-giving, element. 

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