water pollution

7. Nonchemical water pollution that occurs when human activities cause a substantial change in the temperature of water
8. Distinct location from which pollution is directly produced
10. Human sewage from toilets and grey water from bathing and washing clothes/dishes)
11. Legislation: "protection and propagation of fish, shellfish, and wildlife and recreation in and on the water"

1. a natural form of water pollution caused by microorganisms.
2. In a body of water, the area with extremely low oxygen concentration and very little life
3. when man-made products such as gasoline, oil, road salts and chemicals get into the groundwater and cause it to become unsafe and unfit for human use.
4. where too many nutrients, mainly nitrogen and phosphorus, are added to bodies of water and can act like fertilizer, causing excessive growth of algae. s
5. any body of water above ground, including streams, rivers, lakes, wetlands, reservoirs, and creeks.
6. Small and simple sewage treatment system, made up of a septic tank and a leach field, often used for homes in rural areas
9. reduced in concentration to a point where it becomes detrimental to aquatic organisms living in the system.
11. contamination of our environment with chemicals that are not found there naturally.