30Atmospheric Chemistry Air PollutionEasy1 markModern cars are fitted with catalytic converters. Which statement about the catalysts in catalytic converters is correct?AThey remove nitrogen from the car’s exhaust so that it cannot combine with oxygen.BThey combine with oxygen from the engine to prevent the formation of oxides of nitrogen.CThey remove oxides of nitrogen that are produced in the car engine.DThey are replaced regularly because they are used up.Grade answerGrading criteria