Question

Which of the following statements best describes photochemical smog in large cities in the United States?Photochemical smog is more prevalent during winter months.Answer A: Photochemical smog is more prevalent during winter months.APhotochemical smog causes negative human health impacts such as eye and lung irritation.Answer B: Photochemical smog causes negative human health impacts such as eye and lung irritation.BPhotochemical smog contains secondary pollutants that form when sulfur dioxide and nitrogen oxide interact in the atmosphere.Answer C: Photochemical smog contains secondary pollutants that form when sulfur dioxide and nitrogen oxide interact in the atmosphere.CPhotochemical smog is composed of primary and secondary pollutants that are not reactive.

Answer 1

C: Photochemical smog contains secondary pollutants that form when sulfur dioxide and nitrogen oxide interact in the atmosphere.

Step-by-step explanation

Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds react to sunlight, creating a brown haze above cities in the United States. It tends to occur more often in summer because that is when we have the most sunlight. Their low concentration causes irritation in the nose and throat and their high concentration causes headache, chest pain, cough, and difficulty in breathing.