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Subject:
NYTimes: Earth’s Oxygen: A Mystery Easy to Take for Granted
From:
Charles Carlson <[log in to unmask]>
Reply To:
Informal Science Education Network <[log in to unmask]>
Date:
Fri, 4 Oct 2013 08:22:08 -0700
Content-Type:
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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The remarkable story of life on the earth is contained in the oxygen of our atmosphere, and the simple equation that drives it.

C

http://nyti.ms/19Vzs4G

It took billions of years for Earth’s atmosphere to have enough oxygen to keep animals like us alive. Scientists are still making fundamental discoveries about the element’s history.


Sent from Charlie Carlson's iPad
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Cell 510-499-8086
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