How did the formation of the ozone layer contribute to the existence of life on Earth?
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Around 600 million years ago, a thin ozone layer formed that was capable of protecting life from harmful wavelengths of UV radiation (wavelengths between 200-300 nm). ... In the Silurian, around 420 million years ago, ozone levels were high enough to allow for organisms to survive on land, without any shielding from water.
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Around 600 million years ago, a thin ozone layer formed that was capable of protecting life from harmful wavelengths of UV radiation (wavelengths between 200-300 nm). ... In the Silurian, around 420 million years ago, ozone levels were high enough to allow for organisms to survive on land, without any shielding from water.
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