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Cambridge IGCSE Combined Science practice

Paper 6 structured question: Habitat destruction

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2

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Topic

Habitat destruction

Exam-style question

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Paper 6Alternative to PracticalPractical2 marks

Investigating the effects of deforestation on soil quality.

Method

Method to Investigate Soil Erosion

Design an experiment to measure soil erosion in deforested areas compared to forested areas.

Area TypeSoil Erosion (cm)
Forested0
DeforestedX
  1. a

    Describe the variables you would control in this experiment.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 6 structured question: Habitat destruction

Paper 6Alternative to PracticalPractical3 marks

Results Table

Carbon Dioxide Levels in Different Areas

Table showing CO2 levels in forested and deforested areas.

Area TypeCO2 Level (ppm)
Forested350
Deforested450
  1. a

    Explain the difference in carbon dioxide levels between the two areas.

    Aim for approximately 3 distinct marking points.

    [3]