. . . . "Oceanography (compound of the Greek words \u1F60\u03BA\u03B5\u03B1\u03BD\u03CC\u03C2 meaning \"ocean\" and \u03B3\u03C1\u03AC\u03C6\u03C9 meaning \"write\"), also known as oceanology and marine science, is the branch of Earth science that studies the ocean. It covers a wide range of topics, including marine organisms and ecosystem dynamics; ocean currents, waves, and geophysical fluid dynamics; plate tectonics and the geology of the sea floor; and fluxes of various chemical substances and physical properties within the ocean and across its boundaries."@en .