Answers to:

Active Reading & Review Sheets

Active Reading – Water Use and Management

1. B

2. C

3. A

4. D

5. manufacture goods, dispose of waste, generate power

6. aluminum, cars, computer chips, semi-conductors

7. pump water from a surface water source (river or lake)

8. carry water through pipes in a cooling tower

9. pump water back into the source

10. C

11. D

BACK (Review Ch.11.2 Water Use and Management

1. A

2. C

3. B

4. E

5. D

6. D

7. C

8. A

9. D

10. B

Active Reading – Water Pollution

1. B

2. A

3. C

4. large floating mat of algae caused by excess nutrients like nitrogen or phosphorus

5. eutrophication occurs naturally. Artificial eutrophication has the same results but is caused by humans with the addition of nutrients to water.

6. humans

7. inorganic plant nutrients and water from sewage and fertilizer runoff

8. fertilizer from farms, lawns, gardens - - phosphorus and nitrogen

9. phosphates from laundry and dishwashing detergents

10. phosphorus

11. The dissolved oxygen in water us used up. As algae die, decomposers (bacteria) use up the oxygen. The fish suffocate because no dissolved oxygen is in the water.

BACK – Quiz

1. C

2. E

3. D

4. B

5. A

6. C

7. A

8. B

9. D

10. A

Active Reading – Water Resources

1. underground

2. percolation

3. ground water

4. water table

5. it rains

6. soil

7. rocks

8. water table, saturated

9. a water table has peaks and valleys like the land above it. It is not flat.

10. in wet regions, the water table is near the surface, in dry regions, the water table is far below earth’s surface

11. It flows downhill. Underground peaks and valleys cause this movement (gravity)

12. water table is close to the surface.

Concepts Review Chapter 11

1. E

2. B

3. D

4. A

5. C

6. F

7. G

8. H

9. B

10. D

11. C

12. D

13. B

14. D

15. B

16. B

17. C

18. A

19. B

20. D

Chapter 11 Test Review

1. E

2. J

3. G

4. A

5. H

6. F

7. B

8. D

9. I

10. C

11. A

12. A

13. B

14. C

15. B

16. C

17. D

18. B

19. The water cycle ensures that we never lose water completely. Also, municipal water is treated and recycled

20. Look at the answers on your blue paper from “Analyzing Water Use”

21. 70% agriculture (irrigation), 23% industry (goods, waste, electricity), 3% home (showering, cleaning, flushing, etc.)

22. 1) groundwater recharges slowly 2) water dispersed throughout rock 3) pollutants can cling to the rocks/aquifer

23. 1972 Clean Water Act, 1972 Marine Protection Research & Sanctuaries Act, 1975 Safe Drinking Water Act (SDWA), 1980 CERCLA/Superfund Act (owners operators responsible for cleanup of dumping) 1987 Water Quality Act, 1990 Oil Pollution Act (protect US waterways from oil pollution; all tankers will be double hulled by 2015)

24. non-point source pollution: pollution from a a general source such as runoff of fertilizer from lawns, golf courses, chemicals like oil and gasoline from roads

25. 1) filtration (physical) 2) 1st settling tank (physical) 3) aeration tank – mixed with bacteria and oxygen- bacteria feed on the wastes (biological) 4) 2nd settling tank – solids settle out of tank (physical) bacteria continue to work (biological) 5) chlorination – chlorine added to disinfect water before released (chemical)