Answer:
The phreatic zone
Explanation:
The phreatic zone is the zone is the part of an aquifer that is present below the water table, where all pores and cracks are saturated with water. The above layer of the water table is the vadose zone. The size, color, and depth of phreatic zone may change with changes of season as well as wet and dry periods. It is also called zone of saturation due to complete filling of pores.
