Water storage locations such as oceans, glaciers, and groundwater are collectively referred to as which term?

• A. Fluxes
• B. Reservoirs
• C. Surface water
• D. Groundwater

Answer: (B)

Water storage locations such as oceans, glaciers, and groundwater are called reservoirs. In the water cycle, a reservoir is any place where water is stored, sometimes for long periods. Oceans hold the vast majority of Earth's water, glaciers guard freshwater in ice, and groundwater keeps water in the subsurface. These are distinct from fluxes, which are the processes that move water between reservoirs (evaporation, precipitation, runoff, etc.). Surface water refers to water on the land surface (lakes, rivers) and doesn’t encompass all storage. Groundwater is a specific reservoir, but the term that collectively covers these storage locations is reservoir.