How can air pollution be reduced?

How can air pollution be reduced?

• A. Increase fuel consumption and emissions.
• B. Use catalytic converters, desulfurize fuels, improve energy efficiency, and reduce emissions.
• C. Release more sulfur in fuels.
• D. Rely on more coal power plants.

Answer: (B)

Reducing air pollution comes from cutting the amount of pollutants released as fuels are burned and from making processes more efficient. Using catalytic converters in vehicles helps because they convert harmful gases like carbon monoxide and nitrogen oxides into less harmful substances before they leave the exhaust. Desulfurizing fuels lowers the sulfur content, so burning them produces far less sulfur dioxide, a major pollutant. Improving energy efficiency means you get the same useful work while burning less fuel, which directly cuts overall emissions. Together, these approaches target the main pollution sources and reduce the pollutants entering the air. Choices that involve more fuel use, more sulfur in fuels, or more coal-fired power plants would all tend to increase air pollution rather than reduce it.

Reducing air pollution comes from cutting the amount of pollutants released as fuels are burned and from making processes more efficient. Using catalytic converters in vehicles helps because they convert harmful gases like carbon monoxide and nitrogen oxides into less harmful substances before they leave the exhaust. Desulfurizing fuels lowers the sulfur content, so burning them produces far less sulfur dioxide, a major pollutant. Improving energy efficiency means you get the same useful work while burning less fuel, which directly cuts overall emissions. Together, these approaches target the main pollution sources and reduce the pollutants entering the air.

Choices that involve more fuel use, more sulfur in fuels, or more coal-fired power plants would all tend to increase air pollution rather than reduce it.