Which of the following would function as a pollution cleanup method for motor vehicles?

Question

Quizplus · Accepted Answer

Using emission-control devices is a pollution cleanup method for motor vehicles. It helps to reduce the amount of pollutants emitted by the vehicle, which is a significant source of air pollution. Improving motor efficiency and relying on mass transit and bicycles can reduce pollution, but they are not pollution cleanup methods for motor vehicles. Adding a charge to new cars based on the amount of pollution they produce is a policy approach to reducing pollution, but it is not a pollution cleanup method.

Which of the Following Would Function as a Pollution Cleanup