Water quality

2. A pH of 7
6. Contamination of Earth from discharge of harmful substances.
7. pH less than 7 is
8. Pollution that does not have a specific point of release, open, loop recycling, when materials are reused to form new products
11. Refers to water clarity
12. The air, water, minerals and animals surrounding and affecting a given organism at any time
13. Type of water that is caused by things like clay, silt, organic and inorganic matter and microscopic organisms
15. The area of land where all of the water that drains off of it goes into the same place
17. Organisms found living in water that have specific living conditions and are very sensitive to pollution.
20. Low levels of this doesn't support living organisms

1. A low-lying area of land that is saturated with moisture
3. Measure of the average kinetic energy
4. A pH greater than 7
5. Compound that the nitrogen based polyatomic ion NO3
9. Pollutants discharged from a single identifiable location
10. An act to set maximum permissible amounts of water pollutants that can be discharged into waterways
14. The acidity of water
16. A flow of water in a channel or bed, as a brook, rivulet or small river
18. Based nutrients commonly found in fertilizers and pesticides.
19. Water that has been used and contaminated