7 Extinction-Level Events That Would End Life as We Know It

They can be grouped into categories.

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Science 7 Extinction-Level Events That Would End Life as We Know It We can identify major extinction events by examining the chemical composition of rocks, the fossil record, and evidence of major events on moons and other planets. READ NOW READ THESE How Does Global Warming Affect Marine Life? 8 Fun Facts About Sea Cucumbers Seven Facts About the Ocean Everyone Should Know You are receiving this newsletter because you subscribed to the Today I Learned newsletter. If you wish to unsubscribe, please click here A Dotdash Brand 1500 Broadway, 6th Floor, New York, NY, 10036 © 2019 Dotdash - All rights reserved. Privacy Policy.