The origin of crude oil
1 mark · EasyName one environmental problem caused by burning hydrocarbons from crude oil.
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Air pollution
Also accept: Acid rain; Global warming; Air pollution; Climate change
Common mistakes: Water pollution
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Marking points
B1 · 1 mark · Names one valid environmental problem caused by burning hydrocarbons (e.g., air pollution, acid rain, global warming)
Worked solution
Burning hydrocarbons causes air pollution.