It includes:

* Oceans: The largest bodies of water, covering about 71% of the Earth's surface.

* Lakes: Large bodies of water that are surrounded by land.

* Rivers: Flowing bodies of water that typically travel from higher to lower elevations.

* Groundwater: Water that exists underground within rock formations.

* Ice caps and glaciers: Large bodies of ice that can be found in polar regions and high mountain areas.

* Atmosphere: Water vapor in the air that contributes to weather patterns.

The hydrosphere is incredibly important for life on Earth. It provides water for drinking, agriculture, and industry, and it plays a vital role in regulating Earth's climate.