Tires are specifically designed with a grooved surface which is called a . Thread
Tread
Scales

Tread

Explanation:

Tread is the grooved surface of a tire that grips the road. When the road is wet, the tread allows water to flow through the grooves and away from the tire. This action allows the tire tread to cut through the water and grip the road.

the answer is:

in a biology class, the teacher started explaining a new lesson about the dna structure. personally, i found this lecture hard to understand. so i decided to use my critical thinking skills to be able to understand it. i analysed the different ideas, and broke them down into smaller parts to assimilate each. then i started evaluation and tried to link what i am learning with real life experiences so that i can make sure that i know how everything i am learning relates. finally, i started questioning by researching more what i learned and asking more questions that can me through my learning process. reflecting on the information meant that i should review it. all this me greatly understand what i previously found hard to understand.

hope it !