Tractor Balloon Tires

General Science questions.?
You don't have to answer all, but please give me some answers that are short and easy to understand. Thank you!
#1 How can you can use Charles’s and Boyle’s laws to explain why you should check your tire pressure when the temperature changes
#2 Why might an icy road at -1C be more dangerous than an icy road at -10C
#3 Infer the air pressure effect on a small car when a tractor-trailer passes it
#4 As elevation increases, boiling point decreases. list each of the following locations as at sea level, above sea level or below sea level (boiling point of water in C is given)
Death Valley (100.3), Denver (94), Madison (99), Mt. Everest (76.5), Mt. McKinley (79), NYC (100), Salt Lake City (95.6).
#5 List possible effects for each of the following causes.
a. Perspiration evaporates
b. pressure on a balloon decreases
c. your buoyant force equals your weight
i would appreciate it if you answer ASAP!!!
2
**It's almost water, so the mixture of ice and water seems like it might be more slippery than regular ice, which you can grip relatively well with the right tires.
**When the tyre goes over ice it actually adds heat to the ice due to friction of the tyres on the road. Therefore when you are moving over -1 degree celcius road then you actually heat the ice into water. Because it is water you will not actually be on a solid surface and will move more freely.
At -10 degree celcius the car friction may not melt the ice very well and so the surface becomes more solid. Because it is more solid then your friction is better and you are less likely to slip... however dont brake or accelerate quickly or the friction temperature will increase and you get similar reaction to above.
E-Revo VXL (Winter Setup)
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