Use the Accompanying Figure to Answer the Following Question

question 27

Multiple Choice

Use the accompanying figure to answer the following question.
-Recall that areas with high net primary productivity not only produce high levels of biomass rapidly,they also take up large amounts of CO2 and give off large amounts of oxygen.What is the likely result of the increasing amounts of fertilizers in the major rivers emptying into oceans?

• A)Eutrophication,followed by hypoxia,is a likely result,ultimately leading to more CO2 uptake and more oxygen released.
• B)Eutrophication,followed by hypoxia,is a likely result,ultimately leading to less CO2 uptake and more oxygen released.
• C)Fisheries will improve as the extra nutrients feed shellfish and fish.
• D)Productivity in these areas will increase permanently,leading to more CO2 uptake and more oxygen released.
• E)Eutrophication,followed by hypoxia,is a likely result,ultimately leading to less CO2 uptake and less oxygen released.

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