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aphotic zone |
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aphotic zone: see ocean ocean, interconnected mass of saltwater covering 70.78% of the surface of the earth, often called the world ocean. It is subdivided into four (or five) major units that are separated from each other in most cases by the continental masses. See also oceanography.
..... Click the link for more information. . aphotic zone [a′fäd·ik ‚zōn] (oceanography) The deeper part of the ocean where sunlight is absent. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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