Hot air, but it can damage your hair.
cold air
Because hot air makes heat and makes you hair darker , so cool and cold air makes your hair cooler and grow fast to get you warm for next winter
well, blow dryers are a good type of way to dry your hair and it blows HOT air but if you use cold air its still okay. but to cold would make your hair freeze so i would probably say hot air
Cold air and hot water makes water freeze faster simply because the hot water is steaming and so the result is that there is less water to freeze. hot water = steam = less water less water = faster freeze cold air = faster freeze
the cold air is making the water in your hair cold which makes your hair cold. if your hair is dry then there is no water in i for the hair to be as cold as it is when its wet.
getting the engine worked on and put in a cold air intake
Generally, cold air will not do anything for any glue. Some adhesives,especially many epoxies will benefit from warm air. Some other adhesives, particularly those with 100 % silicon will harden faster under cold,running water.
it travels faster in warner air since cold particles dont move very fast because they do not have much energy. then when warm air enters the particles they start moving faster and vibrating faster which moves sound along alot faster. hope this helps :).
A hair dryer uses hot air instead of room temperature air, thus drying you hair faster.
sound travel faster in cold air half i give you further other person will give
It depends what way. Aroma will go upward faster in hot air, whilst cold air will keep it closer to the ground.
cold air because hot blowes them up