Final answer:
The grooves on a tire's surface are created using threads and tread patterns. They help to channel water, provide grip, and increase the tire's surface area for better stability and maneuverability.
Step-by-step explanation:
The grooved surface of a tire is created by the incorporation of threads and tread patterns on the tire's surface.
These grooves serve multiple purposes:
- They help to channel water away from the tire's contact area with the road, reducing the risk of hydroplaning and increasing traction.
- The grooves also provide additional grip by creating friction with the road surface.
- Furthermore, the grooves help to increase the tire's surface area in contact with the road, enhancing stability and maneuverability.