Question Constellation Sign up for free AQA · GCSE · Combined Science · Higher
Environmental impact of fossil-fuel electricity
The boat has a generator that burns a fossil fuel.
Explain one environmental impact of using fossil fuels to generate electricity.
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Marking points
- 1 Identify a pollutant or emission from burning fossil fuels, such as carbon dioxide, sulfur dioxide, NOx or particulates.
- 2 Link the named pollutant to a matching environmental impact, such as carbon dioxide increasing global warming, sulfur dioxide or NOx increasing acid rain, or particulates or NOx harming living organisms.
Full-mark answer
Burning fossil fuels releases carbon dioxide, which increases global warming.
Why this answer loses marks
Carbon dioxide causes acid rain.
Carbon dioxide should be linked to global warming or the greenhouse effect; acid rain is linked to sulfur dioxide or NOx.