The nose, pharynx, larynx, trachea and bronchi all work like a system of pipes through which the air is funnelled down into our lungs. There, in very small air sacs called alveoli, oxygen is brought into the bloodstream and carbon dioxide is pushed from the blood out into the air.
And, just to clarify, the kitty litter in your trunk, to be used for traction, needs to be taken out and spread around your tires. Most cars are front wheel drive, so the extra weight alone in the back ain't gonna do you much good.
Certain types of clay create hard clumping litters while other are absorbant but non-clumping such as attapulgite and montmorillonite. The natural properties of sodium bentonite (highly absorbent, odour controlling, and hard clumping) make it ideal for cat litters and many other uses.