IB ESS HL 2.3.3 Carbon Stores Questions

Identify organic and inorganic carbon stores, then calculate differences in stored carbon from ecosystem data.

Syllabus
First assessment 2026
Course
ESS HL
Level
HL

Exam points

  • distinguish organic and inorganic carbon stores in ecosystem diagrams, including organisms, soils, oceans, atmosphere and fossil fuels
  • calculate and interpret differences in carbon stored between ecosystems or treatment conditions, retaining the given carbon units

IB ESS HL 2.3.3 Carbon Stores Questions question 1

[Maximum number: 1]
Figure Carbon cycle

Figure Carbon cycle

Identify one inorganic carbon storage in Figure.

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