Watersheds and Aquifers Questions and Answers 2023

Watersheds and Aquifers Questions and Answers 2023 What is a watershed? A watershed is an area of land from which water flows into a larger body of water. What is groundwater? Groundwater is obtained from aquifers. What is an aquifer? An aquifer is an underground area where water is stored from pores in the rock and soil. What is pollution directly put into the aquifer or water called? Point source pollution What is non point source pollution? No single source of pollution that runs into water. What is a river system? A river and all of its tributaries. What is the largest watershed and how many sq. kilometers are there? The Mississippi watershed- 3 million sq. kilometers. What is a divide? The ridge of land that separates one watershed from another. What is the unsaturated zone? The layer of rocks and soil above the water table. What is recharge? Recharge is the new water from the surface that enters an aquifer to refill it. What is a spring? Where the groundwater bubbles or flows out of cracks in the rocks or the water table meets the surface. What is a well? A drilled structure made by man to obtain groundwater from an aquifer. What is an artesian well? An artesian well in which the water rises because of pressure in the aquifer since the aquifer is between two impermeable layers.