Depends on the vehicle and type of tire.
I do not understand your question. You air your tires up to the exact PSI listed in your owner's manual and on the driver's door post. Too much air pressure in the tires will decrease the amount of tread on the pavement and give you less surface to brake with. The tires will be harder and tend to slide more.
depends on how much air in tires
44 psi
No, you don't have to. Air is air, no such thing as summer or winter air just check and maintain the proper air pressure required for your vehicle.
too much air in the tire
Anything above the required pressure for that vehicle is too much. If the vehicle plate recommends 35, then 40 is too much. Higher pressures will damage the tire and increase it's chances of coming off the rim.
30 psi
as much as you want or whatever the tire recommends
32psi
It is what fills the tires, in the form of air.
There are no 'types' of air. Air is all just air. - Some people do use nitrogen in tires - that is not air.
35 or 38psi?