One-quarter of Earth's surface water exists in the oceans. Half of Earth's surface water exists in the oceans. Almost all of Earth's surface water exists in the oceans. The hydrologic cycle describes how liquid and gaseous water move between the ocean, atmosphere, and rivers. read more
Deep-ocean water contains more carbon dioxide than surface water because deep water is colder and has the ability to dissolve more gases. read more
One-quarter of Earth's surface water exists in the oceans. Three-quarters of Earth's surface water exists in the oceans. Almost none of Earth's surface water exists in the oceans. read more
About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog. read more