Question

what is defined as \humans causing the feeding levels in an aquatic ecosystem to change in a negative way\? cultural eutrophication water treatment biodiversity bioaccumulation

Explanation:

Cultural eutrophication is the process where human activities (like runoff of fertilizers) add excessive nutrients to aquatic ecosystems. This causes over - growth of algae (algal blooms). When the algae die and decompose, it depletes oxygen in the water. This negatively impacts the feeding levels (trophic levels) as fish and other aquatic organisms may die due to lack of oxygen. Water treatment is a process to make water suitable for a particular end - use. Biodiversity is the variety of life in an area. Bioaccumulation is the gradual accumulation of substances (like toxins) in an organism.

Answer:

Cultural eutrophication