It's just regular air.
Nitrogen
Nitrogen.
It is nitrogen.
Nitrogen, because it is an inert gas.
The best tires for a small car would be the ones that the car manufacturer recommends you use on the car. If you keep good tires on your car and check them every now and then you will get better gas mileage.
most used is nitrogen..
Nitrogen and oxygen = Air
nitrogen
nitrogen
Nitrogen mixed with normal air
Examples of solid in a car include the metal body, rubber tires, and plastic components. Liquids in a car include engine oil, coolant, and windshield washer fluid. Gas in a car includes the fuel in the gas tank and the air in the tires.
because they would be flat and you would be screwed