what is the upper surface of ground water
simple- underground and surface water ,both are the water only
Underground water is cleaner.
underground aquifers
Hydrosphere
A swamp is not underground water; it is an area of land that is saturated with water. Swamps can either be freshwater, saltwater, or a combination of both, but they are located on the surface rather than underground.
... is called the hydrosphere.
they pump underground water to the surface
An Oasis
A spring is a place where underground water naturally flows to the surface of the Earth. This occurs when an aquifer is filled to the point that water overflows onto the land surface. Springs can vary in size and flow rate depending on the geology of the area.
A point where underground water comes back to the surface is called a spring. Springs occur when water from underground aquifers flows up to the surface through a natural opening in the ground. Springs are important sources of freshwater for ecosystems and human use.
well's occurs when the water underground meets the surface
Well water is by definition from an underground aquifer, or water table.