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.
Tip. 1  If it's your own cat using the gravel as a litter box, you have two options. 2  If the gravel is outside, the solution is simple: keep Kitty inside. 3  He shouldn't be roaming the outdoors anyway, for his own safety.4  If the gravel is inside the house, it's probably on potted plants or some other small area.ip. 1  If it's your own cat using the gravel as a litter box, you have two options. 2  If the gravel is outside, the solution is simple: keep Kitty inside. 3  He shouldn't be roaming the outdoors anyway, for his own safety.