Diesel engines emit higher levels of particulate matter and nitrogen oxides compared to gasoline engines.

Emission control refers to the technologies and strategies used to reduce the release of pollutants from vehicles.

A turbocharger is a device that increases the power of an engine by forcing more air into the cylinders. It is not an emission control device.

Carbon dioxide is the primary greenhouse gas emitted by vehicles, contributing to climate change.

Hydrogen is considered to be the most environmentally friendly alternative fuel as it produces zero emissions when used in fuel cell vehicles.

Electrification refers to the process of converting a gasoline-powered vehicle to run on electricity, typically by replacing the internal combustion engine with an electric motor and battery.

Electric vehicles do not have a fuel efficiency advantage over gasoline-powered vehicles, as they consume electricity instead of gasoline.

Congestion pricing refers to the practice of charging drivers a fee to use roads during peak traffic times, with the aim of reducing traffic congestion and improving air quality.

Increasing the number of vehicles on the road would lead to higher levels of air pollution, as more vehicles would be emitting pollutants.

Marine emission control refers to the technologies and strategies used to reduce air pollution from ships, such as installing scrubbers and using cleaner fuels.

Turbocharging is a technology used to increase the power of an engine by forcing more air into the cylinders. It is not a marine emission control technology.

Sulfur oxides are the primary air pollutant emitted by ships, particularly when using heavy fuel oil.

Increasing the number of flights would lead to higher levels of air pollution, as more aircraft would be emitting pollutants.

Aviation emission control refers to the technologies and strategies used to reduce air pollution from aircraft, such as using cleaner fuels and installing emission control devices.

High-bypass turbofan engines are a type of aircraft engine that is designed to be more fuel-efficient and produce lower emissions. They are not an emission control technology.