lhydrosphère
The hydrosphere is the total amount of water on a planet. It includes water on the surface, underground, and in the air. On Earth, it is estimated that 96.5% of all water is contained within the hydrosphere. This includes water in oceans, lakes, rivers, groundwater, glaciers, ice sheets, and atmospheric water vapor.
The hydrosphere plays a crucial role in regulating Earth's climate and supporting life. Water is essential
The water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above,