Lesson 4.7.3.4

4.7.3.4 Deforestation Quiz: AQA Combined Science, Unit 7

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 4.7.3.4, Deforestation: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 7: Ecology, written with Revision Ninja.

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The 20 questions

  1. What is a major reason for large-scale tropical deforestation?

    • desert expansion
    • glacier retreat
    • cattle ranching
    • volcanic ash

  2. Tropical forests are cleared to grow crops used for what purpose?

    • biofuels
    • plastics
    • ceramics
    • textiles

  3. Where has large-scale deforestation mainly occurred, according to the specification?

    • polar regions
    • deep ocean floors
    • high mountain snowfields
    • tropical areas

  4. What environmental factor of deforestation does the specification require students to evaluate?

    • implications
    • economics
    • aesthetics
    • linguistics

  5. What is a direct biological consequence of forest loss?

    • increased salinity
    • reduced biodiversity
    • higher magnetism
    • greater pressure

  6. On what type of land are biofuel crops typically grown after clearance?

    • salt flats
    • glacial ice
    • cleared forest
    • volcanic rock

  7. Clearing forest for cattle grazing affects which aspect of the environment?

    • biodiversity
    • lunar cycles
    • the tides
    • earthquake frequency

  8. Which of these is NOT a stated reason for deforestation in the specification?

    • cattle fields
    • rice fields
    • ski resorts
    • biofuel crops

  9. Clearing tropical forest for cattle ranching causes which primary change?

    • habitat loss
    • ocean cooling
    • soil freezing
    • ozone thickening

  10. Which group is most severely affected when rainforests become rice fields?

    • forest species
    • alpine species
    • marine species
    • tundra species

  11. A country grows biofuel crops on cleared forest land. What type of land use is this?

    • commercial fishing
    • biofuel cultivation
    • ski resort building
    • tourism and hotels

  12. Comparing species counts before and after clearing a forest evaluates what measure?

    • viscosity
    • biodiversity
    • luminosity
    • conductivity

  13. A graph shows forest area declining over decades in a tropical region. What does this indicate?

    • a stable ecosystem
    • increasing deforestation
    • rising biodiversity
    • increasing forest area

  14. Which crop type is grown on cleared land for fuel?

    • ornamental flowers
    • garden compost
    • biofuel crops
    • fruit trees

  15. Which food production benefit drives some deforestation?

    • kelp farms
    • rice fields
    • algae ponds
    • fungal vats

  16. Evaluating deforestation requires balancing food benefits against what?

    • mining profits
    • fishing quotas
    • environmental costs
    • urban expansion

  17. What process in trees removes carbon dioxide from the atmosphere?

    • photosynthesis
    • transpiration
    • osmosis
    • respiration

  18. Evaluating deforestation claims requires checking data on biodiversity and what else?

    • carbon
    • sodium
    • helium
    • copper

  19. What must an evaluation of deforestation include?

    • historical timelines
    • only economic costs
    • environmental implications
    • chemical equations

  20. How does deforestation directly increase atmospheric carbon dioxide?

    • respiration stops
    • burning releases carbon
    • soil absorbs carbon
    • photosynthesis increases

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