CHAPTER 19
WATER POLLUTION

1. List nine types of water pollutants and give an example of each. List three strategies to determine the presence and concentration of water pollutants.

2. Distinguish between point and nonpoint sources of pollution. Summarize the availability of clean drinking water for the earth's human population.

3. Draw an oxygen sag curve to illustrate what happens to dissolved oxygen levels in streams below points where degradable oxygen-demanding wastes are added. Compare problems of lake water pollution to those of stream pollution.

4. List three ways to prevent eutrophication and three ways to clean up cultural eutrophication. State three ecological principles illustrated by the Great Lakes and Lake Baikal case studies.

5. Describe what is happening to the quality of coastal waters and how coastal waters can be protected. State one ecological principle illustrated by the Chesapeake Bay case study. Describe the status of ocean dumping and oil spills in the ocean. List six ways to prevent and two ways to clean up ocean pollution.

6. List the major pollutants of groundwater. Explain why cleanup of groundwater is so difficult. List five ways to prevent groundwater pollution.

7. Briefly describe two major laws that protect water quality in the United States. State three strategies to reduce nonpoint pollution. Briefly describe and distinguish among primary, secondary, and tertiary sewage treatment.

8. Explain some of the problems with drinking bottled water. Summarize five home water-purification devices and their effectiveness in treating different types of water problems.

9. List three strategies to shift emphasis from pollution cleanup to pollution prevention strategies.

CHAPTER 20
PESTICIDES AND PEST CONTROL

1. List the five types of pesticides and what they are used to treat.

2. Briefly describe the history of the development of pesticides.

3. List five common household pests and two ways to control them other than using pesticides.

4. List the five major classes of pesticides. Tell if each is broad spectrum or narrow spectrum; state its degree of persistence; give two examples; and tell if each undergoes bioaccumulation or is biologically magnified.

5. Compare contact and systemic herbicides.

6. Give seven reasons to use pesticides. List five characteristics of the ideal pesticide.

7. Describe the consequences of relying heavily on pesticides. Describe the pesticide treadmill. Be sure to describe biological magnification. Briefly describe the threat of pesticides to wildlife and human health.

8. List and briefly describe nine alternative pest management strategies.

9. Define integrated pest management. Analyze the pros and cons of using IPM. List six steps which could be taken to help promote IPM.

Ch 19 Vocabulary

acid solution

advanced sewage treatment

basic solution

biological oxygen demand (BOD)

cultural eutrophication

dredge spoils

eutrophication

indicator species

neutral solution

nonpoint source pollution

oxygen-demanding wastes

ppb

ppm

ppt

primary sewage treatment

secondary sewage treatment

septic tank

sludge

subsidence

water pollution

Ch 20 Vocabulary

biological pest control

DDT

economic threshold

fungicide

herbicide

insecticide

integrated pest management

persistence

pest

pesticide