I'm not sure what the real question here is.
Bulldozers are likely to be pushing against a lot of resistance. Maximizing the contact area the bulldozer makes with the ground is therefore a good thing.
Tractors don't generally face quite as much resistance, and tires are cheaper and easier to maintain than tracks. They also give a smoother ride.
Lorries ("trucks", for those in the US) use tires for smoothness of ride and to avoid tearing up the roadway. The reason there are multiple ones is so that each tire supports less of the weight (if there were only two, each tire would be supporting half the weight, so it would have to have a very high pressure; using 8 allows for the pressure to be 1/4 what it would have to be if there were only two, so the tires can be thinner ... that makes them cheaper AND lighter, so more fuel-efficient).
yes it is
Deep Tracts of Hell was created in 1998-07.
Spinal tracts are communication pathways. There are numerous tracts and they carry messages from the body to the brain and from the brain to the body.
Pennsylvania offered large tracts of land :)
Quadrangles is what divides the land into townships and then each township into smaller tracts. The smaller tracts are subdivided into many different ways.
There are far more than three - but three of them are 1) the optic tract, 2) the nigro-striatal tract, and 3) the mesocortico-limbic tract. And one more tract system,, out of many, is the corpus collosal tract system between the two cerebral hemispheres.
Some animals have relatively short digestive tracts because they are carnivores. Herbivores need longer digestive tracts than carnivores in order to digest cellulose.
There are ascending and descending tracts in the spinal cord. These tracts are nerve fibers bundled together. Messages going to the brain pass through the ascending tracts while messages coming from the brain pass through the descending tracts. These separate paths prevent messages from getting mixed up.
No, they haven't.
The total land area of Chittagong Hill Tracts is 13,180 km² or 8265 mi².
The spinocerebellar tracts are responsible for transmitting proprioceptive information from the muscles, tendons, and joints to the cerebellum. This information helps the cerebellum coordinate voluntary movements and maintain balance and posture.
function of gastrointestinal?