Which condition can decrease your sight distance while driving?

A dirty windshield can significantly decrease your sight distance while driving because it obstructs the driver's view of the road and other vehicles. When a windshield is dirty, it can create glare and distort visibility, making it harder to see clearly, especially in different lighting conditions. This obfuscation may lead to potentially dangerous situations, as the driver may not be able to react in time to obstacles, traffic signals, or pedestrians.

In contrast, clear roads, daylight, and new glasses typically enhance visibility and improve awareness while driving. Clear roads ensure that there are no obstacles or debris that might impede driving, daylight provides natural lighting to enhance visibility, and new glasses are intended to correct vision problems, helping the driver see more clearly. These conditions generally contribute positively to a driver's ability to see and respond appropriately to their environment.