Question

1. authorities in chicago are concerned about sewage discharge entering the chicago river. which pollutants would they most likely be concerned about? (1 pt) helping to heal the river: floating wetlands along the chicago river’s wild mile. (1 point) a. gasoline and car exhaust emissions b. fossil fuels and oil c. herbicides and pesticides d. phosphates and nitrate

Explanation:

Sewage discharge often contains high levels of nutrients like phosphates and nitrates from human waste, food residues, and cleaning products. These nutrients cause eutrophication, harming aquatic ecosystems. Other options relate to non-sewage pollution sources: A is air/runoff from vehicles, B is industrial/fuel runoff, C is agricultural runoff.

Answer:

D. phosphates and nitrate