They can crack, but not from the concrete. The crack from age and dry rot.
It is left on the road as you travel
During winter when the concrete contracts/shrinks and there is no gap, then it will crack from the surface. So gaps are left in concrete such that it can shrink to a safe limit without cracking it.
Tire rubber is mostly left behind as fine particles - rubber dust, if you will. This rubber dust doesn't just sit on the road; it is blown off by wind or washed of by rain, and it ends up in the environment. >>M.T.<<
An "expansion joint" is a joint left in between sections of the same material, like concrete or steel, that allows movement as the material heats up or cools down. Without it, concrete, for example, can expand and crack in hot temperature.
Brake fluid will make the surface of the tire slick, resulting in loss of traction. If left un attended for a long period of time, the brake fluid will "dry rot" the rubber and cause separation.
No. Vulcanized rubber (usually artificial rubber) is very difficult to reprocess. This is why there are many millions of trashed tires accumulating in areas of the US and elsewhere. Sometimes they are burned, or shredded to use in various products. Or they may be used to form artificial reefs. But this occurs for only a small fraction of used tires. Most are left to slowly biodegrade over hundreds of years.
Gaps in concrete slabs, also known as control joints, are intentionally placed to control cracking caused by shrinkage as the concrete cures. These joints help to direct where cracks may occur, allowing them to happen in a controlled manner along the joint lines rather than randomly across the slab. Without control joints, cracks may still form but they would be more unsightly and difficult to predict.
No, not if it is a big crack
The soot/burnt oil could be coming from a leaking valve cover gasket. The burn rubber may be coming from your fender wells if your tires are rubbing.
No. If you had the tires angled left while waiting to turn left and you were rear ended, you would be pushed into the oncoming traffic.
Trade the rear tires to the front and the front tires to the rear. Every other time you do it, trade the right front tire to the left rear and right rear to left front
One symptom of a left bone crack in your hand is severe pain. Also, the inability to move your hand is another symptom.