Create an essay consisting of 500 words addressing ALL of the following topics:
1. Describe dispersed-source pollutants.
2. Explain how plant nutrients, radioactive substances, and oil contribute to water pollution.
3. Discuss how a natural draft cooling tower works.
4. How do mulch and hay bales help reduce erosion?
5. Is dilution an acceptable means to solve pollution problems? Explain your reasoning.
6. Explain how an oligotrophic lake can become eutrophic?
7. Describe salt water intrusion and its impact on groundwater.
8. Describe the advantages and disadvantages of ocean dumping of sludge.
You are required to use at least your textbook as source material for your response. All sources used, including the textbook, should be referenced; paraphrased and quoted material must have accompanying citations.