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	<id>http://Opengenome.net/index.php?action=history&amp;feed=atom&amp;title=%EC%82%B0%EC%86%8C</id>
	<title>산소 - Revision history</title>
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	<updated>2026-05-13T03:16:04Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://Opengenome.net/index.php?title=%EC%82%B0%EC%86%8C&amp;diff=3102&amp;oldid=prev</id>
		<title>Yslee at 07:33, 26 January 2006</title>
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		<updated>2006-01-26T07:33:31Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;lt;p&amp;gt;녹색식물이 광합성의 결과로 생긴 생산물로서 분자상태의 산소를 방출하는데, 현재 대기 중에 함유되어 있는 산소는 대부분이 녹색식물이 지구상에 나타나고 나서 생긴 것이라고 한다. 대기에 존재하는&amp;amp;nbsp;동위원소의 조성은 &amp;lt;sup&amp;gt;16&amp;lt;/sup&amp;gt;O, &amp;lt;sup&amp;gt;18&amp;lt;/sup&amp;gt;O, &amp;lt;sup&amp;gt;17&amp;lt;/sup&amp;gt;O가 각각 99.7628%, 0.20004%, 0.0372%이다.&amp;lt;/p&amp;gt;&lt;/div&gt;</summary>
		<author><name>Yslee</name></author>
		
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