How can we reduce air pollution caused by the vehicle’s gas emissions?
- By washing the vehicle’s fuel tank once a month.
- By keeping the engine and its surroundings clean.
- It is impossible to reduce air pollution. It is a constant factor in the vehicle.
- Correct answer: By regular maintenance of the vehicle’s engine and other systems.
Why this is the answer
The correct answer in the official bank: By regular maintenance of the vehicle’s engine and other systems.
How much pollution comes out of the exhaust depends on the condition of the engine and systems such as ignition, fuel supply, air filter and catalytic converter. A well-tuned engine serviced on schedule burns fuel more completely and emits fewer pollutants. Keeping the engine clean on the outside does not change combustion, so it does not reduce emissions.