IB ESS HL 4.1.11 Hl Stratification Topic Practice

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IB Environmental Systems and Societies

Topic 1: Foundation

Topic 2: Ecology

Topic 3: Biodiversity and conservation

4.1 Water systems

4.1.1—Water movement drivers

4.1.2—Hydrological cycle

4.1.3—Hydrological cycle stores

4.1.4—Hydrological cycle flows

4.1.5—Human activity impacts

4.1.6—Water body steady state

4.1.7 (HL)—Water properties

4.1.8 (HL)—Oceans as carbon sink

4.1.9 (HL)—Ocean carbon sequestration

4.1.10 (HL)—Water temperature and density

4.1.11 (HL)—Stratification

4.1.12 (HL)—Ocean stratification increase

4.1.13 (HL)—Upwellings

4.1.14 (HL)—Thermohaline circulation

4.2 Water access, use and security

4.3 Aquatic food production systems

4.4 Water pollution

Topic 6: Atmosphere and climate change

Topic 7: Natural resources

Topic 8: Human populations and urban systems

IB/ESS/HL//Question Bank/Topic 4: Water/4.1 Water systems/4.1.11 (HL)—Stratification

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