OCR•A-Level•Geography
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Earth's Life Support Systems
Water and carbon cycles as critical life support systems
Practice 54 subtopics in Earth's Life Support Systems. All questions match the OCR A-Level specification.
About Earth's Life Support Systems
Earth's Life Support Systems is a key topic in the OCR A-Level Geographyspecification. This topic covers water and carbon cycles as critical life support systems.
Master all 54 subtopics below with unlimited AI-generated questions. Each subtopic page includes sample questions and the ability to generate unlimited practice questions with detailed solutions.
All Subtopics (54)
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Systems in physical geographyOpen and closed systemsInputs, stores, flows, outputsDynamic equilibriumPositive feedbackNegative feedbackGlobal hydrological cycleGlobal water budgetWater cycle storesOceansCryosphereGroundwaterAtmosphereSoilsBiosphereEvaporation and condensationPrecipitationInterceptionInfiltration and percolationThroughflowGroundwater flowSurface runoffRiver dischargeDrainage basin as a systemWater balance equationStorm hydrographsBasin characteristicsFactors affecting runoffGlobal carbon cycleCarbon storesAtmospheric carbonOceanic carbonTerrestrial carbonLithospheric carbonPhotosynthesisRespirationDecompositionCombustionVolcanic emissionsOcean-atmosphere exchangeTropical rainforest carbonTaiga/boreal forest carbonWetland carbonSoil carbonPeat formationDeforestation impactsFossil fuel burningAgriculture and carbonUrbanisation effectsLand use changeCarbon-climate feedbacksWater-carbon interactionsClimate change impactsFuture scenarios
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