IB Biology D4.3.5 Ocean current changes
IB Biology D4.3.5 Ocean current changes
Practise recognising how warmer oceans can alter circulation and reduce nutrient upwelling, with effects tested mainly through MCQs.
How this is tested
- identify changes to circulating ocean currents as a consequence of rising temperatures
- apply the idea that very warm ocean water can reduce nutrient upwelling to the surface
- avoid unsupported choices about ozone depletion, higher pH or fewer storms