Review for Quiz!

1. Review for Quiz! Ready, set, go!

2. 1. Oxygen can dissolve more readily • A. In warm water • B. Near the tropics • C. In dead zones • D. In cold water

3. 2. Dams damage environments by • A. Creating fishing and swimming areas • B. Reducing flooding upstream • C. Providing water to humans • D. Flooding and sediment deposition is prevented downstream

4. 3. The liquid that comes out of a treatment plant after completion of the treatment process is called • A. Wastewater • B. Sewage • C. Sludge • D. Aeration • E. Effluent

5. 4. This flammable gas is a common by-product of anaerobic digestion (the chemical used to generate electricity) • A. Carbon dioxide • B. Oxygen • C. Hydrogen • D. Methane • E. Nitrogen

6. 5. A term meaning nutrient poor is • A. Slough • B. Sludge • C. Succession • D. Eutrophic • E. Oligotrophic

7. 6. What is the proper sequence of the flow of wastewater through a treatment plant: • A. Disinfection—barscreen—secondary treatment—primary clarification • B. Barscreen—primary clarification—secondary treatment—disinfection • C. Secondary treatment—barscreen—disinfection-primary clarification • D. Disinfection—secondary treatment—primary clarification--barscreen

8. 7. The purpose of clarifiers is to • A. inject air into wastewater to satisfy the needs of microorganisms • B. add chlorine gas to wastewater to kill infectious germs • C. allow suspended solids to settle out and draw off water • D. Produce compost for use as a soil condition

9. 8. The step in most wastewater (sewage) treatment systems in which microorganisms consume dissolved organic matter: • A. primary treatment • B. secondary treatment • C. tertiary treatment • D. chlorination • E. composting

10. 9. Which of the following is a point-source of water pollution: • A. Smoke stack • B. Runoff from streams • C. Melt water • D. Soil erosion • F. Sewage outflow pipe

11. 10. What is nutrient loading called: • A. primary treatment • B. secondary treatment • C. oligotrophic • D. eutrophication

12. 11. Water temperatures • A. Always decrease with depth • B. Are similar around the globe • C. Are more stable than air temperatures

13. 12. A riparian zone refers to • A. a levee • B. estuaries • C. where natural waste water flows into • D. the areas around rivers and streams that absorb and clean water

14. 13. What organisms are at the bottom of the food chain in the oceans? • A. trees • B. zooplankton • C. phytoplankton • D. shrimp

15. 14. Mercury is more concentrated in organisms in higher trophic levels because • A. Organisms near the tropics consume more mercury • B. of bioaccumulation • C. of biomagnification • D. b and c

16. 15. The people that are most vulnerable to mercury toxicity are • A. those that purposely consume mercury • B. people from China • C. pregnant and nursing mothers

17. 16. The Doctrine of Riparian Rightsestablishes • A. the right to distribute freshwater • B. the right of all water-front property owner equal access to water • C. the right to determine first-come first serve privileges

18. 17. The Clean Water Act aims to • A. test drinking water to ensure safety for US citizens • B. monitor outflow of pollutants into rivers, streams and lakes • C. monitor water globally

19. 18. The Principle of Prior Appropriation • A. Allows all waterfront property owners to have the same access to water • B. Allows the US Army Corp of Engineers to assist in distributing water and build levees and dams • C. Appoints rights to water on a first-come, first-serve basis

20. 19. The organisms around hydrothermal vents at the bottom of the ocean • A. rely on photosynthesis for food energy • B. are considered “chemosynthetic organisms” • C. use sunlight to harness energy

21. 20. Why do some rivers that used to reach the oceans no longer do so? • A. The rate of evaporation is higher than it has ever been • B. Immigrants are using more water than ever before • C. Dams are created to build reservoirs for drinking water • D. Water is diverted for irrigation and agriculture • E. C and D

22. 21. The graph below indicates It takes more water to grow vegetables than meat It takes more water to grow meat than vegetables There is no correlation between our diet and water consumption

23. 22. Water has a ______ specific heat which allows it to • A. low, heat and cool quickly • B. high, heat and cool slowly • C. high, moderate temperatures on earth • D. B and C

24. 23. Thermal pollution • A. Can either be hot or cold • B. Doesn’t directly affect aquatic life • C. Can kill aquatic life • D. A and C

25. 24. Why are fisheries collapsing? • Short answer

26. 25. Why do oceanic currents move around the planet in specific patterns? • A.

27. 26. Some factors that may limit the population growth of a species are • A. phosphorus • B. nitrates • C. sunlight • D. food energy • E. predation • F. space • G. access to clean water • H. all of the above

28. 27. For your electronic device to be picked up by a teacher or administrator • A. you must first receive a warning • B. you must first receive three warnings • C. it only has to be seen out used by you one time

29. 28. How many days do you have to make up a missed assignment including a test or quiz? • A. up until the last week of the 6 weeks • B. until such time as determined by you and your teacher • C. three days, losing 10 points a day unless you are sick and can provide a doctors note

30. 29. Write down the 5 items we tested for during our water quality labwhomever can do it the quickest gets the point! • Short answer