IB ESS HL 2.3.4 Carbon Flows Question Bank
Trace photosynthetic, respiratory, combustion and decomposition flows between carbon stores.
- Syllabus
- First assessment 2026
- Course
- ESS HL
- Level
- HL
Exam points
- identify the relevant store, flow or process
- trace matter through the biogeochemical cycle
- evaluate the ecological or climate consequence of the change
2.3.4—Carbon flows question 1
[Maximum number: 4]
Outline four transfers of carbon that will influence its atmospheric storage.
Carbon may reduce atmospheric storage through:
a. Dissolving in oceans;
b. Uptake from plants for photosynthesis;
Carbon my increase atmospheric storage through:
c. Release from living organisms from respiration;
d. Release from burning/incineration/combustion of fossil fuels;
e. Release from decomposers from decomposition;
f. Forest fires;
g. Released from livestock/ruminants;
Note to examiners: There must be an indication of the carbon movement to or from the atmosphere.
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