Final answer:
The water table is the upper surface of the zone of saturation, representing the boundary between the unsaturated and saturated zones. It is dynamic and influenced by topography, rising with hills and sinking with valleys.
Step-by-step explanation:
The water table is the upper surface of the zone of saturation. It represents the boundary between the unsaturated zone, where pore spaces in rocks and soil are filled with air, and the saturated zone, where the pore spaces are filled with water. The water table is dynamic and mimics the topography of the land, rising with hills and sinking with valleys. It receives inputs from rainfall infiltration and can discharge into streams.