What should you do if you encounter snow fog created by passing trucks?

In conditions of snow fog created by passing trucks, the best approach is to look ahead for curves and slow down. This choice is crucial because snow fog can significantly reduce visibility and create hazardous driving situations. By slowing down, you give yourself more time to react to any unforeseen obstacles or changes in the road, which may be obscured by the fog.

Maintaining a safe speed enhances your control over the vehicle and reduces the likelihood of accidents. In such conditions, it's important to drive conservatively, ensuring that you can respond effectively to the driving environment. Recognizing potential curves or changes in the road layout allows you to prepare accordingly, mitigating risks associated with reduced visibility.

The other options, such as turning on high beams, can actually worsen visibility in foggy conditions since the light can reflect off the fog and create glare. Accelerating to pass quickly can put you at greater risk due to the reduced visibility and the possibility of encountering other vehicles or obstacles. Opening your windows for fresh air does not aid in increasing visibility or improving safety on the road and can distract from focusing on the driving conditions. Thus, the most prudent choice is to look ahead for curves and reduce speed to navigate safely through the snow fog.