| A | B |
|---|
| point source pollution | pollution that enters a water source from a specific location |
| nonpoint source pollution | pollution that comes from a large area such as a farm, lawn, construction site, or road |
| aquifer | layers of rock beneath the Earth's crust where water collects between open spaces and is pumped to the Earth's surface |
| coliform bacteria | a type of bacteria naturally present in our environment |
| contaminate | any foreign components in a substance |
| pathogen | germ |
| nutrient | a chemical needed by organisms to live or grow |
| nutrient influx | high amounts of nutrients flowing into an area |
