Has the quantity of pure Oxygen in the atmosphere been declining?

Subject: Has the quantity of pure Oxygen in the atmosphere been declining?

Date: Wed Apr 8 20:48:09 1998
Posted by James Heer
Grade level: undergrad
School: Embry-Riddle Aeronautical University
City: Prescott State/Province: Arizona
Country: USA
Area of science: Earth Sciences
ID: 892086489.Es

Message:


If the quantity of Oxygen in the atmosphere is declining and if it is 
not reversed then there will be some point in the future when life 
will not be able to survive on earth.  I'm looking for the facts 
regarding any recorded history of Oxygen levels in the atmosphere.

Re: Has the quantity of pure Oxygen in the atmosphere been declining?

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