Linked from
The 8 pages that link to Hydrosphere, each with the reason it gives.
PedosphereRelated: Soil stores and filters water exchanged with the hydrosphere.
EarthBroader topic: Liquid water links the planet’s oceans, ice, groundwater, and atmosphere.
Water cycleNarrower topic: It is the broadest reservoir system participating in the water cycle.
Earth system scienceBroader topic: Water stores and transports heat and matter across the planet.
BiosphereRelated: Its waters host aquatic ecosystems and connect distant parts of the biosphere.
Climate systemBroader topic: Its largest reservoir, the ocean, stores and moves substantial heat.
Oxygen cycleNarrower topic: The hydrosphere stores oxygen in dissolved form and in water molecules.
Body of waterNarrower topic: Water bodies are distinct parts of this planet-wide reservoir.