IB ESS 4.4.5 Eutrophication
IB ESS 4.4.5 Eutrophication
Practise linking nutrient inputs to algal blooms, low oxygen and ecosystem effects using figures, runoff contexts and management choices.
How this is tested
- identify eutrophication from figures showing likely algal bloom or water-quality change
- explain how nitrates and phosphates from runoff cause algal blooms and hypoxia
- evaluate prevention or release-control strategies for reducing eutrophication