Sulphur dioxide level in the atmosphere can be reduced by using A. More efficient car engines B. Catalytic converters in industry C. Static electricity to attract it in factory chimneys D. Low – sulphur fuels

The correct answer is D. Low – sulphur fuels.

Sulphur dioxide is a gas that is released into the atmosphere when fossil fuels are burned. It can cause a number of health problems, including respiratory problems, heart disease, and cancer.

Low-sulphur fuels are fuels that have a lower concentration of sulphur than regular fuels. They are produced by removing sulphur from the fuel before it is burned.

Using low-sulphur fuels can help to reduce the amount of sulphur dioxide that is released into the atmosphere. This can help to improve air quality and reduce the risk of health problems.

The other options are not as effective at reducing sulphur dioxide levels in the atmosphere.

• More efficient car engines can help to reduce the amount of fuel that is burned, but they do not remove sulphur from the fuel.
• Catalytic converters in industry can help to reduce the amount of pollutants that are released into the atmosphere, but they are not as effective at removing sulphur dioxide as low-sulphur fuels.
• Static electricity is not a practical way to remove sulphur dioxide from the atmosphere.

Therefore, the correct answer is D. Low – sulphur fuels.