Chapter 14 Water Pollution

2. a layer of decently clean water found in the center of a septic tank
6. a dramatic change in water tempeture in a short time
8. an area that produces pollution
13. a man made chemical used for killing off bacteria and smaller animals
16. water that seeps into the ground
18. legislation that limits the amount of different chemicals allowed to be in the water
20. when a chemical doesn't react easily with other chemicals it is _____
22. an area in the water that has a low amount of oxygen
24. where does most trash in the oceans congregate at the center of
25. solid waste material from wastewater
26. the particles of harmful material found in the air

1. a process using a soap like substance used to separate and break apart oil clumps
3. non chemical water pollution that substantially increases the temperature of the area
4. when a body of water becomes high in nutrients
5. the reason why whales and dolphins are miserable
7. a metal natural pollutant found in the water that has been increasing due to human activity
9. legislation that sets national standards for drinking water
10. a group of harmful chemicals used for rocket fuel
11. most plastic pollution is this item
12. human made body of water with large amounts of manure produced by animals
14. how many gyres are there in the world
15. the part of the world with the most mercury emissions
17. a large container that holds waste water from a house as a part of a septic system
19. a well that doesn't need a pump instead using natural pressure of the water
21. the person who invented the idea of natural selection
23. a place that had lead leach into drinking water from pipelines