Water on Earth

Groundwater is water that is found underground in reservoirs called aquifers. It is an important source of drinking water.

An aquifer is an underground layer of water-bearing rock or sediment that can store and transmit groundwater.

Approximately 70% of the Earth's surface is covered by water.

A glacier is a large sheet of ice that moves very slowly across the land, typically found in extremely cold regions.

Most of the Earth's freshwater is located in the cryosphere, which includes glaciers and ice caps.

The cryosphere refers to the frozen water part of the Earth system, including glaciers, ice caps, and sea ice.

Salt water is water that contains a significant concentration of dissolved salts, primarily found in oceans.

Salt water contains a high concentration of salts, while fresh water has a low concentration of salts and is found in rivers, lakes, and aquifers.

The water cycle is the continuous movement of water on, above, and below the surface of the Earth, including processes like evaporation, condensation, and precipitation.

Evaporation is the process by which water changes from a liquid to a gas, usually due to heat from the sun.