12 marks
State two storages in the carbon cycle.
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Syllabus Edition
First teaching 2024
First exams 2026
Biogeochemical Cycles (DP IB Environmental Systems & Societies (ESS): SL): Exam Questions
33 mins10 questions
22 marks
State two flows in the carbon cycle.
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31 mark
Define the term biogeochemical cycle.
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41 mark
Identify one organic store of carbon.
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51 mark
Outline one way carbon can move between stores in an ecosystem.
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61 mark
Outline one way human activities impact the carbon cycle.
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1a2 marks
Part of the carbon cycle is shown in the diagram below.
Identify processes X and Y in the diagram.
1b3 marks
Describe how carbon is released during process Y.
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2a2 marks
Carbon from fossil fuels enters the atmosphere during combustion.
Explain how this process contributes to rising average global temperatures.
2b2 marks
Cutting down trees during deforestation increases the problem described in part a.
Explain how.
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17 marks
Explain how different components of the carbon cycle act as stores, sinks or sources.
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29 marks
Discuss how managing carbon stores and sinks contributes to climate change mitigation.
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