Hiilen kiertokulku
<ul><li><a href="//commons.wikimedia.org/wiki/File:Carbon_cycle-cute_diagram.svg" title="File:Carbon cycle-cute diagram.svg">Carbon_cycle-cute_diagram.svg</a>: * <a href="//commons.wikimedia.org/wiki/File:Carbon_cycle-cute_diagram.jpeg" title="File:Carbon cycle-cute diagram.jpeg">Carbon_cycle-cute_diagram.jpeg</a>: User <a href="https://en.wikipedia.org/wiki/User:Kevin_Lafamiglia" class="extiw" title="en:User:Kevin Lafamiglia">Kevin Saff</a> on <a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></li>
<li>Derivative work: <a href="//commons.wikimedia.org/wiki/User:FischX" title="User:FischX">FischX</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Olli" title="User:Olli">Olli</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Olli" title="User talk:Olli"><span class="signature-talk">talk</span></a>)</li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:Carbon_cycle-cute_diagram.svg" title="File:Carbon cycle-cute diagram.svg">Carbon_cycle-cute_diagram.svg</a></li></ul>