Water Pollution

4. water from household or building use (such as toilets, showers, and sinks) that can contain human fecal waste
6. is the act of removing water coloration, and disinfection to kill disease-carrying bacteria and some (but not all) viruses.
7. any contamination of water with chemicals or other hazardous substances that are detrimental to human, animal, or plant health.
9. is typically shallow with a soft and mucky bottom
10. the action of making a liquid more dilute.
12. a natural process that results from accumulation of nutrients in lakes or other bodies of water.
13. unproductive lakes
15. represents the various levels for BOD

1. soil, aquatic, landfill and compost are 4 types of what
2. rapid growth of algae or cyanobacteria that can cause harm to people, animals, or the local ecology.
3. a process that occurs when human water pollution speeds up by introducing sewage
5. the presence of excessive bacteria
8. a method used to extract natural gas and oil from deep rock formations known as shale.
11. oil as it comes out of the ground
14. areas of water bodies where aquatic life cannot survive because of low oxygen levels.