1. Fully compare and contrast Nitrogen and Phosphorus as water quality pollutants by addressing each of the following. How do the pollutants lead to degraded water quality? Clearly link nitrogen and phosphorus pollution to oxygen deficits. What additional concerns are associated with ammonia (nitrogen)? Why does phosphorus represent a long term water quality concern? 2. Compare and contrast viruses, bacteria, and protozoa as microbiological contaminants, making sure to address size, symptoms, exposure routes, and test methods..