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Revise HL extension — global interactions and flows for IB Geography (3.1)

Looking for free IB Geography notes on HL extension — global interactions and flows? This Higher Level lesson covers official syllabus point 3.1 on Geography HL. Use the visual steps, key terms, and quick checks below — then practise with IB criterion marking on HL extension — global interactions and flows. Built for students searching "IB Geography 3.1", "HL extension — global interactions and flows IB revision", or a free alternative to paid IB note sites.