Which statement best describes a human influence on the biogeochemical cycles?

Human activities such as using nitrogen-rich fertilizers and releasing nutrient pollution add excess nitrogen and phosphorus to waterways. These nutrients can cause eutrophication, including algal blooms and lower oxygen levels in the water. This makes A, increased eutrophication caused by high levels of nitrogen and phosphorus, the best description. Denitrification generally removes nitrates, and alternative energy sources are not the main cause of increased global warming.

AI-written and checked against the verified answer.