Chapter 11 Vocabulary

3. zone an area where surface water, such as rainwater, infiltrates the ground and replenishes an aquifer
7. pollution the contamination of water bodies, with a negative impact on their uses
10. eutrophication the process where human activities, primarily the release of excess nutrients like nitrogen and phosphorus, cause an overgrowth of algae and aquatic plants in a body of water
13. the process of removing dissolved salts and other impurities from water
14. a land area that drains to a common point
15. safe to drink
16. source pollution comes from a single, identifiable source, such as a pipe or smokestack
18. point source pollution a widespread type of pollution
19. an underground layer of permeable rock, sand, or gravel that holds and transmits groundwater

1. a place where a large supply of something is stored
2. the state or quality of a material or membrane that causes it to allow liquids or gases to pass through it.
4. pollution the degradation of water quality by human-caused changes to ambient water temperature
5. water that exists beneath the Earth's surface in underground spaces called aquifers
6. the increasing concentration of a substance, like a pollutant or heavy metal, in organisms at successively higher levels of a food chain
8. water any body of water on the Earth's surface
9. used water that has been negatively impacted in quality by human activities
11. system network of a main river
12. a bacterium, virus, or other microorganism that can cause disease.
17. a barrier built across a river to hold back water for purposes like power generation