1
2 marks
Outline the meaning of the term horizon in the context of soils and soil profiles.
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Syllabus Edition
First teaching 2024
First exams 2026
Soil (DP IB Environmental Systems & Societies (ESS): SL): Exam Questions
30 mins11 questions
2
1 mark
Outline one common input of soil systems.
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3
1 mark
Outline one common output of soil systems.
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4
2 marks
Percolation is a transfer process that occurs in soil systems.
Outline this process.
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5
2 marks
Leaching is a transfer process that occurs in soil systems.
Outline this process.
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1
2 marks
State two examples of transformation processes occurring within soil systems.
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2
2 marks
State two examples of transfer processes occurring within soil systems.
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3
2 marks
Briefly outline the meaning of the term succession in the context of soil ecosystems.
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4
2 marks
State two soil qualities or characteristics that may change during soil ecosystem succession.
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1
7 marks
Explain how a soil system can be considered to be an ecosystem.
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2
7 marks
Explain the importance of soil organisms in terrestrial ecosystems.
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