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IB ESS HL 4.4.7 Eutrophication and Ecosystem Services Question Bank

Evaluate effects of eutrophication on ecosystem services.

Syllabus
First assessment 2026
Course
ESS HL
Level
HL

Exam points

  • identify the aquatic-system process or pollution indicator
  • apply the relevant conservation, quality or management model
  • evaluate ecological and human trade-offs from evidence

4.4.7—Eutrophication and ecosystem services question 1

[Maximum number: 4]
Figure Diagram showing the expanse of the Mississippi River basin draining into the Gulf of Mexico

Figure Diagram showing the expanse of the Mississippi River basin draining into the Gulf of Mexico

Figure Pie charts showing sources of nutrients delivered to the Gulf of Mexico from the Mississippi River

Figure Pie charts showing sources of nutrients delivered to the Gulf of Mexico from the Mississippi River

Explain how nutrient pollution could impact aquatic food production in the Gulf of Mexico.

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