Hidrospera

An hidrospera ()ὕδωρ, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseusσφαῖρα, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus iyo an sinaralak na masa kan tubig na manonompongan sa, irarom, asin itaas kan 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,Encyclopædia Britannica, 'Hydrosphere': https://www.britannica.com/science/hydrosphere/Origin-and-evolution-of-the-hydrosphere iyan nagpadagos na magbago nin korte. Kawsa ini kan seafloor spreading asin continental drift, na nagpapakarhay giraray kan daga asin kadagatan."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.

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