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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