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Learn how nitrate and phosphate runoff from agriculture causes eutrophication, oxygen depletion and ecosystem damage for IB Geography Option A.3 exams.
Read the answerLearn why shared rivers and aquifers create conflict through scarcity, upstream control, pollution, unequal power and competing demands in IB Geography exams.
Learn to evaluate the economic, social and environmental costs and benefits of large dam-building projects using IB Geography concepts and exam technique.
Learn the IB Geography distinction between water quantity and water quality, their causes, interactions, key examples, and how to explain both in exams.
Learn how local participation improves water management through local knowledge, accountability, equity and maintenance, with IB Geography exam guidance.
Learn what causes droughts, how physical and human factors interact, and how to explain meteorological, agricultural and hydrological drought.
Learn how urbanization and deforestation reduce interception and infiltration, increase surface runoff, and alter hydrographs and flood risk for IB Geography.
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