Biology · Oct / Nov 2019 · Paper 12 · Question 32
5090Effects of humans on ecosystems
The diagram shows the origins of a type of pollutant entering an ocean bay. [pie chart: from farms and city streams 34%, from human sewage 34%, from the atmosphere 32%] What identifies the type of pollutant?
- Acarbon dioxide
- Binsecticides
- Cmethane
- Dnitrogen-containing chemicals
As printed in the paper
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Correct answer: D. nitrogen-containing chemicals
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