Whch of the following below is one reason why groundwater become polluted? a. Pollutants mixed with water pass through permeable layers above the aquifer. b. Factories dump their waste directly into aquifers. c. Refuse infiltrates the water table when garbage is dumped. d. All of the above
D. All of the above. Groundwater is one of our most important sources of water for irrigation and is polluted by many man-made factors which permeate through the ground.
