Water is necessary for sustaining life on Earth and helps connect Earth's systems. The terrestrial hydrosphere includes water on the land surface and underground in the form of lakes, rivers, and groundwater along with total water storage. NASA tracks nearly every aspect of the water cycle — where precipitation is falling, the amount of water.

The hydrosphere is extensively made up of liquid water, ice, and water vapor. Water vapor in the air is the humidity level. Water vapor rises and cools which turns into clouds. Clouds contain.

/ˌhaɪdrəˈsfɪər/ The hydrosphere is the part of a planet that's made of water. Oceans, rivers, lakes, and clouds are all typically included in the hydrosphere. The watery parts of our planet, including vapor that hovers above the Earth's surface and water that's underground, make up its hydrosphere.