Sand on the surface of the road may cause:

1. AAn increase in the friction between the tyres and the road and an increase in the braking force.
2. BImportant road signs and signboards placed along the road to be hidden.
3. CAn increase in the friction between the tyres and the road and overheating of the tyres.
4. DA reduction in the friction between the tyres and the road and skidding of the vehicle.

Pick an answer to test yourself