Question

eutrophication is:
○ what occurs when too many fish die off in the ocean and pollute it
○ what occurs when the environment becomes enriched with nutrients, increasing the amount of plant and algae growth
○ what occurs when the environment has too little nutrients
○ what occurs when too many large - scale boat operations pollute the water

Explanation:

Eutrophication is defined as the enrichment of an environment (typically aquatic) with nutrients (like nitrogen or phosphorus), which stimulates excessive plant and algae growth. The other options describe unrelated processes: fish die-offs are a potential consequence of eutrophication (not the definition), too few nutrients is oligotrophy, and boat pollution is a different type of water contamination.

Answer:

what occurs when the environment becomes enriched with nutrients, increasing the amount of plant and algae growth