During night driving, why is windshield cleanliness important?

• A. It makes no difference.
• B. It helps reduce glare and improves visibility.
• C. It is only important in rain.
• D. It only matters if you have a sunroof.

Answer: (B)

Keeping the windshield clean at night is essential for visibility. Dirt, smudges, and bugs on the glass scatter the light from headlights and streetlamps, creating glare and halos that wash out details and reduce contrast. A clean windshield lets you see more clearly, helping you judge distances and spot hazards sooner, which improves your reaction time. It’s not just important when it’s raining— grime builds up even on dry nights and can worsen glare. It has nothing to do with having a sunroof. In short, a clear windshield helps you see better and react safer during night driving.