Where does nitrogen come from.

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Offline turnipsock

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Where does nitrogen come from.
« on: 26/05/2008 00:42:50 »
The Earths atmosphere is made up of about 80% Nitrogen...where does that come from?

Oxygen and Carbon Dioxide come from various sources, but Nitrogen never gets a mention...why?
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Offline JimBob

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Where does nitrogen come from.
« Reply #1 on: 26/05/2008 15:59:32 »
"In the beginning ..."

I'll be unable to give much of a rational explanation except to mention the assumption that the original atmosphere of earth was mostly a methane-ammonia concoction. Were it not weighted heavily to the ammonia end, life would not have formed Amino acids, the building blocks of life, which are made of a carboxyl group(s) and an ammonia atom (with one hydrogen missing).

Yet all of this is just the accepted speculation of 3-4 generations of organic life scientists - I know of little concrete evidence from the fossile record of the conditions of the atmosphere during the Archean geologic period.

 
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Offline Soul Surfer

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Where does nitrogen come from.
« Reply #2 on: 28/05/2008 09:57:03 »
The glib answer is that it came from the same stars that made the carbon and the carbon.  There is just quite a lot of nitrogen around in the universe
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