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251 million years ago the Earth faced the greatest extinction in its history. Over 90% of all living life ended. What caused this event known as the great dying?

2007-11-04 06:46:10 · 1 answers · asked by White Star 4 in Arts & Humanities History

1 answers

There are lots of conjectures--a meteor hitting the Earth is one--but since no one was around to keep records, it's extremely doubtful that we'll ever know for certain.

2007-11-04 06:57:32 · answer #1 · answered by Chrispy 7 · 0 0

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