Lesson 5.9.2.4
5.9.2.4 The carbon footprint and its reduction Quiz: AQA Combined Science, Unit 16
20 questions
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Lesson 5.9.2.4, The carbon footprint and its reduction: 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
-
What term describes the total greenhouse gas emissions of a product?
- Carbon footprint
- Greenhouse index
- Carbon capacity
- Ecological biomass
-
Over what timespan is a carbon footprint calculated?
- Usage phase only
- Disposal phase only
- Full life cycle
- Manufacturing only
-
Which two greenhouse gases are specifically targeted to reduce carbon footprints?
- Oxygen and helium
- Hydrogen and ozone
- Carbon dioxide and methane
- Nitrogen and argon
-
Which action directly reduces carbon dioxide emissions?
- Increasing oil use
- Using petrol cars
- Burning more coal
- Using renewable energy
-
Which agricultural change reduces methane emissions?
- Watering fields
- Adding more cattle
- Using plastic fences
- Changing livestock feed
-
What is a main limitation for reducing carbon footprints?
- Excess oxygen
- Low electricity demand
- High cost
- Too many trees
-
What does a complete carbon footprint measure?
- Transport phase only
- Only factory use
- Full life cycle
- Packaging stage only
-
Which pair of actions both effectively reduce a carbon footprint?
- Flying and mining
- Walking and insulating
- Driving and heating
- Smelting and logging
-
A product emits 50 kg CO2 in manufacture and 30 kg in transport, with no other emissions. What is its carbon footprint?
- 80 kg CO2
- 1500 kg CO2
- 20 kg CO2
- 50 kg CO2
-
What is the direct effect of loft insulation on emissions?
- Increased heating
- More coal burned
- Less fuel burned
- Higher gas use
-
What is the main effect of cutting transport delivery trips?
- More vehicle exhaust
- Lower transport emissions
- Higher fuel usage
- Increased traffic
-
What must be compared to find the true impact of shopping bags?
- Bag price
- Full life cycle
- Colour only
- Shop location
-
Which action reduces a school's electricity carbon footprint?
- Using renewables
- Adding diesel generators
- Burning gas
- Using coal power
-
Why are some carbon reduction targets difficult to meet?
- Essential processes
- Too much wind
- Free electricity
- Instant technology
-
Why is methane included in a carbon footprint?
- Acid rain gas
- Inert gas
- Greenhouse gas
- Noble gas
-
A product's footprint is 200 kg CO2e. A redesign cuts its transport emissions by 35 kg. What is the new footprint?
- 235 kg CO2e
- 175 kg CO2e
- 165 kg CO2e
- 135 kg CO2e
-
Which action reduces methane emissions from landfill sites?
- Adding more waste
- Increasing food waste
- Capturing waste gas
- Stopping recycling
-
Which factor is NOT counted in a product's carbon footprint?
- Transport fuel
- Natural air
- Disposal emissions
- Factory energy
-
Why is replacing coal power stations slow?
- Free materials
- Zero cost
- High expense
- Instant setup
-
Which action reduces both carbon dioxide and methane?
- Insulating homes
- Driving diesel cars
- Burning coal
- Increasing meat production
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