Question

1. groundwater is the primary source of drinking water for approximately $\frac{1}{3}$ of the people living in the united states.

which activity could be harmful to the groundwater supply in a particular area?
washing a car with industrial soap and letting the soap soak into the ground.
running a lawn sprinkler all day and letting the water soak into the ground.
building a landfill with protection layers made of plastic material and clay.
clear all

Explanation:

Industrial soap contains harsh chemicals that can leach into the ground, contaminating the underlying groundwater supply. Running a lawn sprinkler only adds water to the ground without introducing toxins, and a landfill with protective layers is designed to prevent groundwater contamination.

Answer:

A. Washing a car with industrial soap and letting the soap soak into the ground.