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CAIE IGCSE Biology 20.2.4 Undesirable Effects of Deforestation Questions

Practise explaining how deforestation reduces biodiversity, increases extinction risk, removes soil and raises flooding and carbon dioxide.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • link habitat and food-web loss to reduced biodiversity and species extinction
  • explain how loss of roots and canopy increases soil erosion, runoff and flooding
  • explain higher atmospheric carbon dioxide through reduced photosynthesis, decay or burning

CAIE IGCSE Biology 20.2.4 Undesirable Effects of Deforestation Questions question 1

[Maximum number: 1]

How will these natural processes be affected by deforestation?

flooding

loss of soil

transpiration

decreased

decreased

increased

decreased

increased

decreased

increased

decreased

increased

increased

increased

decreased

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