Hilingon an source kan Hidrospera

[[Ladawan:Ocean_world_Earth.jpg|thumb|An [[Kinaban]] nakwaan nin ladawan sa bandang [[Kadagatan Pasipiko]]]]
An '''hidrospera''' ({{etymology|grc|''{{wikt-lang|grc|ὕδωρ}}'' ({{grc-transl|ὕδωρ}})|tubig||''{{wikt-lang|grc|σφαῖρα}}'' ({{grc-transl|σφαῖρα}})|sphere}})<ref>[https://wwwdoc=Perseus%3Atext%3A1999.04.0057%3Aentry%3Du%28%2Fdwr ὕδωρ], Henry George Liddell, Robert Scott, ''[[A Greek-English Lexicon]]'', on [[Perseus Project|Perseus]]</ref><ref>[https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3Dsfai%3Dra^ σφαῖρα], Henry George Liddell, Robert Scott, ''[[A Greek-English Lexicon]]'', on [[Perseus Project|Perseus]]</ref> iyo an sinaralak na masa kan [[tubig]] na manonompongan sa, irarom, asin itaas kan [[Planetary surface|ibabaw]] kan sarong [[planeta]], [[minor na planeta]], o [[natural satellite]]. Minsan ngani an hidrospera kan [[Kinaban]] nag-eeksistir na sa haros 4 bilyon na taon,<ref>Encyclopædia Britannica, 'Hydrosphere': https://www.britannica.com/science/hydrosphere/Origin-and-evolution-of-the-hydrosphere</ref><ref>{{cite journal|last1=Albarède|first1=Francis|last2=Blichert-Toft|first2=Janne|author2-link=Janne Blichert-Toft|title=The split fate of the early Earth, Mars, Venus, and Moon|journal=Comptes Rendus Geoscience|date=November 2007|volume=339|issue=14–15|pages=917–927|doi=10.1016/j.crte.2007.09.006|bibcode=2007CRGeo.339..917A|url=https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.1016/j.crte.2007.09.006/}}</ref> iyan nagpadagos na magbago nin korte. Kawsa ini kan [[seafloor spreading]] asin [[continental drift]], na nagpapakarhay giraray kan daga asin kadagatan.<ref name="Our Changing Planet 2011, pp. 88">"Our Changing Planet: an Introduction to Earth System Science and Global Environmental Change." Our Changing Planet: an Introduction to Earth System Science and Global Environmental Change, by Fred T. Mackenzie, 2nd ed., Pearson Education, 2011, pp. 88–91.</ref>

==Toltolan==
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