Lesson 4.9.2.4

4.9.2.4 The carbon footprint and its reduction Quiz: AQA Chemistry, Unit 9

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 4.9.2.4, The carbon footprint and its reduction: 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 9: Chemistry of the atmosphere, written with Revision Ninja.

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The 20 questions

  1. What term describes total greenhouse gas emissions over a product's life cycle?

    • Carbon footprint
    • Emission factor
    • Carbon neutral
    • Greenhouse index

  2. Reducing emissions of which two gases will lower a product's carbon footprint?

    • Argon and chlorine
    • Oxygen and nitrogen
    • Carbon dioxide and methane
    • Hydrogen and helium

  3. Over what span is a product's carbon footprint calculated?

    • Disposal stage
    • Manufacturing only
    • Full life cycle
    • Transport phase

  4. Which action reduces carbon dioxide emissions from transport?

    • Using less fuel
    • Driving faster speeds
    • Increasing engine size
    • Burning more coal

  5. How can methane emissions from landfill sites be reduced?

    • Adding more plastic
    • Capturing the gas
    • Exposing to sunlight
    • Increasing moisture

  6. What is a major factor that may limit actions to reduce emissions?

    • Infinite resources
    • Lack of interest
    • High financial costs
    • Decreased taxation

  7. Why might switching to an electric vehicle fail to eliminate carbon emissions entirely?

    • Roads create friction
    • Electricity from fossils
    • Batteries are heavy
    • Vehicles produce oxygen

  8. Which process reduces the carbon footprint during a product's disposal stage?

    • Incineration burning
    • Deep ocean dumping
    • Landfill burial
    • Recycling materials

  9. Which broad category of gases is included in the carbon footprint?

    • Noble gases only
    • Greenhouse gases
    • Toxic gases only
    • Inert gases only

  10. What stage of a product's life cycle is included in its carbon footprint?

    • Full life cycle
    • Manufacturing only
    • Disposal only
    • Transport only

  11. What must be assessed to calculate the total carbon footprint of a product?

    • Full life cycle
    • Manufacturing only
    • Transport stage only
    • Disposal phase only

  12. Which action directly reduces energy consumption in a home?

    • Turning on lights
    • Painting walls
    • Insulating buildings
    • Opening windows

  13. How does releasing methane affect a carbon footprint reduction scheme?

    • Destroys ozone
    • Absorbs sunlight
    • Offsets carbon savings
    • Neutralises nitrogen

  14. A product's footprint falls from 50 units to 40 units. What is the percentage reduction?

    • 40%
    • 20%
    • 25%
    • 10%

  15. What factor often limits personal carbon footprint reduction?

    • Abundant wealth
    • Total independence
    • Unavoidable services
    • Personal choice

  16. Which transport change reduces a company's carbon footprint?

    • Petrol vans
    • Lower-emission vehicles
    • Diesel freight
    • Aviation fuel

  17. What must be included when calculating the carbon footprint of an event?

    • Ticket prices
    • Travel and energy
    • Venue acoustics
    • Weather forecasts

  18. Which greenhouse gas emissions must be reduced to decrease a carbon footprint?

    • Nitrogen
    • Methane
    • Neon
    • Argon

  19. What limits the carbon reduction benefit of electric cars?

    • Tyre wear friction
    • Power station emissions
    • Wind resistance drag
    • Interior heating fans

  20. Which method reduces the carbon footprint associated with home heating?

    • Improving insulation
    • Opening vents
    • Installing aircon
    • Removing radiators

All AQA Chemistry quizzes