In Addition to Filling Lakes with Sediment,why Is Eutrophication a Biological

question 8

Multiple Choice

In addition to filling lakes with sediment,why is eutrophication a biological concern?

• A)Filling lakes is the only major concern.
• B)Excess algal growth leads to high levels of dissolved oxygen.
• C)Excess algal growth makes it difficult for primary consumers to find food.
• D)High levels of nutrients are toxic to algae.
• E)When the algae die and decompose,dissolved oxygen levels drop.