If you want traction you need the tread. Smooth tires are only used for racing.
Soft tires are better because they are smooth on the track which gives them more speed.
A dime is smaller than a nickel. A nickel is worth less than a dime. A dime has a ridged side, while a nickel is smooth and thicker.
It all depends. A knobbly tyre will have a poorer grip on a smooth surface than a smooth tyre, while a smooth tyre will have poorer grip on a loose surface than a knobbly tyre. But overall a smooth-tyred road bike, on a smooth and clean road, can brake and corner harder w/o skidding than a bike with knobbly tires can.
They have more traction.
Yes, they are IMO.
They all make excellent tires.
Because they have more tread.
Tires and rims that are something better than the standard auto tires.
Black kitchen canisters are going to show things like flour or sugar more than white, but may hide other messes better. Perhaps a characteristic that may better determine ease of cleaning is the material and design of the canister (whether it is smooth or ridged).
Yes, nitrogen is more stable than air in tires.
I like thriller better than smooth criminal.
Vevelt