GEOLOGY

Detailed explanation-1: -The soil surface above the water table is called the unsaturated zone, where both oxygen and water fill the spaces between sediments. The unsaturated zone is also called the zone of aeration due to the presence of oxygen in the soil.

Detailed explanation-2: -The upper surface of this water-filled area, or “zone of saturation", is called the water table. The saturated area beneath the water table is called an aquifer, and aquifers are huge storehouses of water.

Detailed explanation-3: -The water table sits on top of what experts call the zone of saturation, or phreatic zone. The area above the water table is called the vadose zone.

Detailed explanation-4: -Water table, also called groundwater table, is upper level of underground surface in which the soil or rocks are permanently saturated with water.

Detailed explanation-5: -The one nearest the surface is the “zone of aeration", where gaps between soil are filled with both air and water. Below this layer is the “zone of saturation", where the gaps are filled with water. The water table is the boundary between these two layers.