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Topic 4 Paper 2 Section A style Questions

We have created some section A type questions on this page, focusing wherever possible on data response and analysis-type questions. Use them as a pick and mix for your own assessments Question 1 This question assesses 4.4.14 (HL only) Figure 1 shows the changes in Biochemical Oxygen Demand (BOD) and Dissolved Oxygen (DO) levels in a river upstream and downstream from a point source of pollution (a tanning...

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