Lesson 5.9.2.2

5.9.2.2 Human activities which contribute to an increase in greenhouse gases in the atmosphere Quiz: AQA Combined Science, Unit 16

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 5.9.2.2, Human activities which contribute to an increase in greenhouse gases in the atmosphere: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 16: Chemistry of the atmosphere, written with Revision Ninja.

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The 20 questions

  1. Which human activity increases atmospheric carbon dioxide?

    • Burning fossil fuels
    • Using solar panels
    • Farming livestock
    • Planting trees

  2. Which human activity increases atmospheric methane?

    • Recycling glass
    • Driving electric cars
    • Using wind turbines
    • Farming cattle

  3. Clearing forests for farmland mainly increases which gas in the atmosphere?

    • Carbon dioxide
    • Nitrogen
    • Argon
    • Oxygen

  4. What process releases methane from landfill sites?

    • Aerobic respiration
    • Fractional distillation
    • Anaerobic decomposition
    • Thermal cracking

  5. Which activity releases methane via leakages?

    • Purifying drinking water
    • Extracting natural gas
    • Generating hydro power
    • Refining copper

  6. What is the primary basis for scientific belief in human-induced climate change?

    • Unchecked blogs
    • Media speculation
    • Anonymous opinions
    • Peer-reviewed evidence

  7. Why is modelling global climate change difficult?

    • Zero uncertainty
    • Linear equations
    • Constant variables
    • Complex systems

  8. What should be assessed when evaluating a climate change report?

    • Font size
    • Paper weight
    • Author popularity
    • Evidence quality

  9. How should claims of absolute certainty in climate reports be handled?

    • Accept blindly
    • Ignore completely
    • Describe uncertainties
    • Increase funding

  10. What makes a media report about climate change potentially biased?

    • Complete datasets
    • Peer review
    • Independent checks
    • Using partial evidence

  11. Which process makes scientific results more trustworthy?

    • Peer review
    • Anonymous publishing
    • Social media sharing
    • Quick guessing

  12. Which source of scientific claims is generally the most reliable?

    • Social posts
    • Advertisements
    • Peer-reviewed journals
    • Personal blogs

  13. Which two greenhouse gases are increased significantly by human activities?

    • Argon and water vapour
    • Nitrogen and oxygen
    • Carbon dioxide and methane
    • Helium and hydrogen

  14. What does agreement between multiple independent studies do to the evidence base?

    • Strengthens it
    • Weakens it
    • Destroys it
    • Invalidates it

  15. Why are simplified models often used to study global climate change?

    • Complex systems
    • Complete accuracy
    • Direct observation
    • Constant variables

  16. Why is communicating scientific results to a wide audience important?

    • Increases product sales
    • Stops all debate
    • Allows peer scrutiny
    • Removes all variables

  17. Which check is essential when evaluating scientific evidence on climate change?

    • Commercial profit
    • Political backing
    • Media popularity
    • Peer review status

  18. What happens to atmospheric methane if human emissions are reduced?

    • It increases
    • It doubles
    • It stays constant
    • It decreases

  19. What do many scientists believe greenhouse gas increases will cause?

    • Stronger magnetic field
    • Lower sea levels
    • Increased ozone layer
    • Higher surface temperature

  20. How should models based on limited data be treated?

    • As absolute proof
    • As impossible facts
    • As total fiction
    • With careful caveats

All AQA Combined Science quizzes