Which of the following environmental issues is created by the reaction between smog and sunlight and can cause severe health problems for some people?

Sunlight reacts with pollutants in smog, such as nitrogen oxides and volatile organic compounds, to form ground-level ozone. This ozone can irritate the lungs and worsen breathing problems, causing severe health effects for some people. Eutrophication, acid rain, and toxic spills are not created by this sunlight-driven reaction.

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