The term used to describe the line denoting the upper limit of saturation (water) in the ground is the water table.
The top level of an underground surface where the soil or rocks are constantly saturated with water is referred to as the water table, also known as the water table. .
The capillary fringe, or zone of aeration, that is located above it and below it are divided by the water table. Due to climate changes and how much precipitation is utilised by vegetation, the water table changes with the seasons as well as from year to year. It is also impacted by artificially recharging wells or extracting large volumes of water from them.
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