Authorities in Chicago are concerned about sewage discharge entering the Chicago River. Which pollutants would they MOST likely be concerned about?
A. fossil fuels and oil
B. gasoline and car exhaust emissions
C. phosphates and nitrates
D. pesticides and herbicides
C. phosphates and nitrates
These pollutants are commonly found in sewage and can lead to nutrient pollution in bodies of water, causing algal blooms and ultimately harming aquatic ecosystems.