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IB ESS HL 5.1.4 Soil System Inputs Questions

Practise IB ESS HL 005.001.004 by applying soil system inputs concepts to environmental systems questions.

Syllabus
First assessment 2026
Course
ESS HL
Level
HL

Exam points

  • identify soil-system inputs including precipitation, organic matter, weathered minerals, leaching, nitrogen fixation and fertilizer
  • distinguish inputs from outputs such as evaporation, plant uptake, leaching and erosion
  • explain how input and output flows change mineral stores, nutrient cycling and soil fertility

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Study 5.1.4—Soil system inputs conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB ESS HL 5.1.4 Soil System Inputs Questions question 1

[Maximum number: 1]

Soil quality is important for global food production systems.

Horizons in a typical soil profile

Figure:Horizons in a typical soil profile

Identify one other input to the mineral storage in the "A" horizon.

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