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IB ESS HL 5.1.11 Soil in Element Recycling Questions

Practise IB ESS HL 005.001.011 by applying soil in element recycling concepts to environmental systems questions.

Syllabus
First assessment 2026
Course
ESS HL
Level
HL

Exam points

  • identify microorganism roles including decomposition, mineralization, nitrogen fixation, nitrification, denitrification and food-web support
  • explain how microorganisms make nutrients available or remove them through soil element cycles
  • link microbial activity to soil fertility, plant uptake, organic-matter turnover and ecosystem functioning

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Study 5.1.11—Soil in element recycling conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB ESS HL 5.1.11 Soil in Element Recycling Questions question 1

[Maximum number: 1]
Figure Types and causes of soil degradation globally

Figure Types and causes of soil degradation globally

Figure Soil profile and the relative proportions of each type of microorganism at increasing depth

Figure Soil profile and the relative proportions of each type of microorganism at increasing depth

Outline one role that microorganisms play in soil ecosystems.

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