5. what is biochemical oxygen demand? how is it related to water quality?

6. how can the addition of nutrients such as nitrates and phosphates result in a reduction of amount of dissolved oxygen in the water?

7. differentiate between point and nonpoint sources of water pollution.

8. how was most industrial water disposed of? how has this changed over the past 25 years?

9. what is thermal pollution? how can it be controlled?

10. describe primary, secondary, and tertiary sewage treatment.

11. what are the types of wastes associated with agriculture?

12. why is stormwater management more of a problem in a urban area than in a rural area?

1. Describe the hydrologic cycle. 2.- Pistimmich between withdrawal and consumption of watcr: What are the similarities between domestic and industrial water use? How are they different from in-stream use? 4. How is land use related to water quality and quantity? Can you pro vide local examples? 5. What is biochemical oxygen demand? How is it related to water quality? How can the addition of mutrients such as nitrates and ptrosphates result in a reduction of the amount of dissolved oxygen in the water? 7. Differentiate between point and nonpoint sources of water pollution. 8. How are most industrial wastes disposed of? How has this changed over the past 25 years? ?. What is thermal pollution? How can it be controlled? Describe primary, secondary, and tertiary sewage treatment. What are the types of wastes associated with agriculture? Why is stormwater management more of a problem in an urban area than in a rural area? Define groundwater mining. How does irrigation increase salinity? What are the three major water services provided by metropolitan areas