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</html><thumbnail_url>https://www.ocean4future.org/savetheocean/wp-content/uploads/2019/05/1024px-Mariana_Trench_Map_1907.jpg</thumbnail_url><thumbnail_width>1024</thumbnail_width><thumbnail_height>815</thumbnail_height><description>. .ARGOMENTO: OCEANOGRAFIAPERIODO: XXI SECOLOAREA: DIDATTICAparole chiave: oceani, mari, fosse, piattaforma continentale &nbsp; Perch&#xE9; le fosse abissali sono importanti?Come abbiamo accennato, la presenza di una fossa ci indica dove una placca precipita al di sotto del fondo oceanico circostante per fenomeni di subsidenza. La fossa pi&#xF9; nota e pi&#xF9; profonda &#xE8; quella delle Marianne (Mariana [&hellip;]</description></oembed>
