Here's a breakdown:

* Groundwater: Water that is stored underground in the spaces between rocks and soil.

* Water Table: The upper limit of the zone of saturation, where all the spaces in the rock or soil are filled with water. It's essentially the boundary between the saturated zone (below) and the unsaturated zone (above).

The water table isn't always flat. Its level can fluctuate depending on:

* Precipitation: More rain or snowmelt raises the water table.

* Evapotranspiration: Water evaporating from the soil and plants lowers the water table.

* Human Activities: Pumping groundwater for irrigation or drinking water can lower the water table.

Let me know if you have any other questions!