OCR 2023 GCSE Combined Science B Twenty First Century Science J260/06: Chemistry (Higher Tier) Question Paper & Mark Scheme (Merged)
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Course
Science
Institution
Science
The combustion of fossil fuels for energy produces harmful substances.
(a) (i) Draw lines to connect each harmful substance with the description of its major source.
Harmful
substance
Major source
[2]
(ii) Explain one problem caused by increased amounts of sulfur dioxide in the atmosphere.
...
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