Before the dinosaurs, a million-year long volcanic eruption destroyed the ozone layer - CNET
They called it the "great dying" and it almost destroyed life on earth 250 million years ago, by destroying the ozone layer.
from CNET https://ift.tt/2NrWQCC
via Mobiles
from CNET https://ift.tt/2NrWQCC
via Mobiles
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