The area of an oquifer in which rock pores are completely filled with water. water table zone of saturation watershed surface water

## Step 1<br />The problem is asking for the term that describes the area of an aquifer where all the rock pores are completely filled with water. An aquifer is a geological formation that can store, transmit, and yield water to a well or spring. <br /><br />## Step 2<br />The options provided are:<br />- Water table: This is the upper surface of the zone of saturation. It is the level below which the ground is saturated with water.<br />- Zone of saturation: This is the area in an aquifer where all the pores are filled with water. This is the correct answer.<br />- Watershed: This is an area of land that drains all the streams and rainfall into a common outlet such as the outflow of a reservoir, mouth of a bay, or any point along a stream channel.<br />- Surface water: This is water that is on the Earth's surface, such as in a river or lake.<br /><br />## Step 3<br />Based on the definitions, the correct answer is "zone of saturation".