Catalytic converters reduce what pollutant?

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Prepare for the AP Environmental Science Exam. Study with quizzes and multiple choice questions covering atmospheric pollution. Each question offers helpful hints and detailed explanations to boost your knowledge and confidence. Tackle the exam with assuredness!

Multiple Choice

Catalytic converters reduce what pollutant?

Explanation:
Catalytic converters use metal catalysts to transform harmful components of exhaust into less harmful substances. In typical vehicle exhaust, carbon monoxide and unburned hydrocarbons are converted into carbon dioxide and water, reducing the amount of these pollutants released into the air. They also help lower nitrogen oxides, but the most direct and prominent targets are carbon monoxide and hydrocarbons. Particulates aren’t removed by the catalytic converter, and sulfur dioxide comes from fuel sulfur rather than the converter’s main action.

Catalytic converters use metal catalysts to transform harmful components of exhaust into less harmful substances. In typical vehicle exhaust, carbon monoxide and unburned hydrocarbons are converted into carbon dioxide and water, reducing the amount of these pollutants released into the air. They also help lower nitrogen oxides, but the most direct and prominent targets are carbon monoxide and hydrocarbons. Particulates aren’t removed by the catalytic converter, and sulfur dioxide comes from fuel sulfur rather than the converter’s main action.

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