Answer :
The air inside the Tyre causes pressure because the particles bump into each other and cause pressure the more they bump into each other or their container the higher the pressure is.
As the tyre move , particle inside the tyre will start colliding with each other, due to which particle collide with the wall of the tyre which exert pressure on the tyre and cause pressure
What is Pressure ?
Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed .
The air in a bicycle tyre cause pressure because of increase in randomness . As the tyre move , particle inside the tyre will start colliding with each other due to which randomness between the particle will increase , due to which particle collide with the wall of the tyre which exert pressure on the tyre and cause pressure .
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