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IB ESS HL 2.3.3 Carbon Stores Question Bank

Identify major carbon stores and compare their relative roles in the carbon cycle.

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

2.3.3—Carbon stores question 1

[Maximum number: 1]
Figure Carbon cycle

Figure Carbon cycle

Identify one inorganic carbon storage in Figure.

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