Water Pollution

4. one of several truly global environmental pollutants.occurs primarily via low-level food contamination.
9. are taxonomically widely diverse and comprise viruses and bacteria as well as unicellular and multicellular eukaryotes.
11. a muddy or slushy mass, deposit, or sediment
12. an abundance of fertility to a body of water.
13. occurs when human water pollution speeds up the aging process by introducing sewage, detergents, fertilizers, and other nutrient sources into the ecosystem.
16. any deviation from the natural temperature in a habitat
17. large, human-made ponds line with rubber to prevent the manure from leaking into the groundwater.
18. a large container that receives wastewater from the house.
20. occurs when nitrogen oxides and sulfur oxides are released into the atmosphere and combine with atmospheric oxygen and water.

1. diffuse areas such as an entire farming region that pollutes a waterway.
2. the highest level of a contaminant that is allowed in drinking water based on cost benefit analysis and is enforceable.
3. a group of bacteria that are passed through the fecal excrement of humans, livestock, and wildlife.
4. distinct locations that pump waste into a waterway.
5. the amount of oxygen a quantity of water uses over a period of time at a specific temperature.
6. believed to cause liver tumors, neurodevelopmental and thyroid dysfunctions
7. an organism whose presence, absence or abundance reflects a specific environmental condition.
8. Water produced by human activities such as human sewage from toilets and gray water from bathing and washing clothes or dishes.
10. bacteria that put a large demand for oxygen in the water
14. are subsurface wastewater disposal facilities used to remove contaminants and impurities from the liquid that emerges after anaerobic digestion in a septic tank.
15. the contamination of streams, rivers, lakes, oceans, or groundwater with substances produced through human activities and that negatively affect organisms
19. a variation in temperature which causes tension in a material