Topic: Oxygen on Earth
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Answers to Common Questions
How many oxygen is on earth?
Earth has twenty one percent of oxygen Read More »
Source: http://wiki.answers.com/Q/How_many_oxygen_is_on_earth
Where Did the Molecular Oxygen in the Earth's Atmosphere Originat...
Today, oxygen is the second most common gas in the atmosphere by volume, with argon a distant third. However, oxygen in the early Earth's atmosphere was bound up in water. What changed? As oxygen-breathers, we have an interest in how our pl... Read More »
Source: http://www.ehow.com/about_5367863_did-oxygen-earths-atmosphere-or...
How was oxygen on earth produced?
"THE EARLY ATMOSPHERE The present composition of the atmosphere is: 21% OXYGEN 78% NITROGEN 0.04% CARBON DIOXIDE ~0.9% ARGON The atmosphere wasn't like this when the Earth was created over 4½ billion years ago. THE FIRST BILLION YEARS The E... Read More »
Source: http://wiki.answers.com/Q/How_was_oxygen_on_earth_produced
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Answers to Other Common Questions
Oxygen accounts for 23.1% of Earth's atmosphere by weight (or 1.189 quadrillion metric tons). It also accounts for 88.8% of Earth's oceans by weight (1.201 quintillion metric tons). And finally, Oxygen takes up 49.2% of Earth's crust by wei...
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Source: http://wiki.answers.com/Q/How_much_oxygen_is_on_earth
ur mom
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Source: http://wiki.answers.com/Q/What_is_the_abundance_of_oxygen_on_eart...
All the planets have oxygen, Earth has a lot of oxygen in its atmosphere due to plants.
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Source: http://wiki.answers.com/Q/Why_is_there_oxygen_on_the_earth_and_no...
the orign of oxygen is ..... im not sure but i think its swedish beacuse this man dicovered in the 1600"s that this oxygen could help people live and he was swedish.
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Source: http://wiki.answers.com/Q/What_is_the_origen_of_earths_oxygen
our plants and trees
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Source: http://wiki.answers.com/Q/What_is_the_source_of_the_earths_oxygen
Armageddon.
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Source: http://wiki.answers.com/Q/What_type_of_era_is_no_oxygen_on_earth
Oxygen was not necessarilly "introduced" to the Earth. Many people have a hard time understanding that the ozone layer that surrounds the Earth is not "holding in" our breathable atmosphere. Air is our atmosphere. Air has "weight", believe ...
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Source: http://wiki.answers.com/Q/How_was_oxygen_introduced_into_Earth's_...
