The hydrosphere encompasses all the water on Earth, including oceans, rivers, lakes, glaciers, and groundwater. It plays a crucial role in the Earth’s climate system, the hydrological cycle, and the distribution of life. The study of the hydrosphere is essential for understanding water resources, environmental processes, and the impact of human activities on water systems.
Reference: Kump, L. R., Kasting, J. F., & Crane, R. G. (2009). The Earth System. Pearson.