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IB ESS HL 2.2.19 Microplastics Question Bank

Analyse how microplastics enter food webs, persist and affect organisms.

Syllabus
First assessment 2026
Course
ESS HL
Level
HL

Exam points

  • identify the ecological process or energy relationship
  • apply the correct thermodynamic, productivity or trophic concept
  • justify the conclusion from evidence and system boundary

2.2.19—Microplastics question 1

[Maximum number: 1]
Figure: Dead albatross chick with plastic garbage in stomach

Figure:Dead albatross chick with plastic garbage in stomach

Figure:Albatross and plastic impacts

- Figure: Albatross and plastic impacts: larger plastic pieces are taken in by fish, sea birds and animals, which may die of starvation.
- One study estimates around 1 million sea birds, including albatrosses, and 100000 animals are killed by ingestion of plastic or entanglement in plastic fishing nets.
- About half of all albatross species are endangered or critically endangered on the Red List.

Explain why albatross chicks may starve if they eat plastic.

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