The sphere that refers to earths water is called the hydrosphere.
Answer:
Hydrosphere
Explanation:
Hydrosphere comprises of the total area of earth surface that is occupied by water. It includes all the water present in all its physical forms, that is, solid, liquid and water vapor.
For example, the water present in rivers, oceans, and lakes, the water vapor present in the atmosphere and the solid form of water present in glaciers together make the hydrosphere.
