Final answer:
The statement 'Roads are not very slick during the first 15 minutes of rainfall' is False. After the first 15 minutes of rainfall, the roads become slick due to the accumulation of water on the surface.
Step-by-step explanation:
The statement 'Roads are not very slick during the first 15 minutes of rainfall' is False. After the first 15 minutes of rainfall, the roads become slick due to the accumulation of water on the surface. This is because the rainwater mixes with oil and gasoline leaks from cars, making the road surface more slippery. When it first starts raining, the roads may not be as slippery as they become later on. However, it is still important for drivers to exercise caution and adjust their driving behavior accordingly during any amount of rainfall.