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IB ESS 2.2.19 Microplastics

IB ESS 2.2.19 Microplastics
IB Environmental Systems and Societies syllabusESS SL/HLFirst assessment 2026

Practise linking microplastics to pollutant transport, food-chain transfer and ecological risk in aquatic and terrestrial systems.

How this is tested

  • explain how microplastics can carry persistent pollutants through a food chain
  • predict which trophic levels face greater exposure when contaminated plastics are ingested
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