Underground water：Aquifers and Groundwater
Aquifers and Groundwater
Aquifer
https://en.wikipedia.org
An aquifer is an underground layer of water-bearing, permeable rock, rock fractures, or unconsolidated materials (gravel, sand, or silt).
Groundwater
https://en.wikipedia.org
Groundwater is fresh water located in the subsurface pore space of soil and rocks. It is also water that is flowing within aquifers below the water table.
Groundwater
https://www.britannica.com
groundwater, water that occurs below the surface of Earth, where it occupies all or part of the void spaces in soils or geologic strata.
Groundwater
https://www.ngwa.org
The visible bodies of water are referred to as surface water. The majority of fresh water is actually found underground as soil moisture and in aquifers.
How Ground Water Occurs
https://pubs.usgs.gov
It is difficult to visualize water underground. Some people believe that ground water collects in underground lakes or flows in underground rivers.
What is Groundwater?
https://groundwater.org
Groundwater is the water found underground in the cracks and spaces in soil, sand and rock. It is stored in and moves slowly through geologic formations of ...
What is Groundwater?
https://www.usgs.gov
Groundwater is a part of the natural water cycle (check out our interactive water cycle diagram). Some part of the precipitation that lands on the ground ...