D4.2.3—Amazon rainforest deforestation Topic Practice
D4.2.3—Amazon rainforest deforestation Topic Practice

IB Biology syllabusBiology SL/HLFirst assessment 2025
Students practise interpreting climate and hydrological data to evaluate Amazon deforestation impacts on regional water cycling and biome resilience.
How this is tested
- predict reduced rainfall recycling using transpiration loss data from deforested versus intact Amazon catchment
- explain how diminished regional cooling and lowered cloud formation increase savanna transition risk in deforested
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