File:Oxigen cycle 1.svg

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English: Oxygen cycle. Water (H2O) falls as rain over land and over the sea, and animals and plants receive it. A part of the remainig water evaporates so that it condenses again to form clouds. Another part of the water fallen on land either seeps into the interior of the earth or flows through streams and rivers. Through photosynthesis, phytoplankton, plants and trees incorporate CO2 and release O2 into the atmosphere.

Through breathing, animals release CO2, while incorporating O2. Industries and volcanic eruptions also release CO2.

Vector illustration done with the advice of Mercè Piqueras, biologist.
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Source Own work
Author Eme Chicano
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I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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Date/TimeThumbnailDimensionsUserComment
current14:58, 25 August 2015Thumbnail for version as of 14:58, 25 August 2015564 × 562 (149 KB)Eme Chicano (talk | contribs)Cut the image
13:52, 16 August 2015Thumbnail for version as of 13:52, 16 August 2015842 × 595 (152 KB)Eme Chicano (talk | contribs)Change image
15:07, 15 August 2015Thumbnail for version as of 15:07, 15 August 2015842 × 595 (211 KB)Eme Chicano (talk | contribs)User created page with UploadWizard

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