If an object is more streamlined it will create less friction with the air and so it will be able to travel faster
two reasons 1. because it makes the train more streamline helping it travel faster 2. it looks cool!
Streamline helps animals move faster so that there is not as much force on them. Think of it like a car the smoother and sleeker the car is the lest air resistance meaning the faster the car.
technically humans don't but fish in water do it so they can swim faster
so they can swim faster and get away form there predators and get there food more faster too.
earthworms travel faster
YOU SEE THE DEFINITION I THAT THE BODY is moved in a generous way u get the pic
No. Nothing can travel faster than light.
Because the molecules are less dense and they vibrate faster letting sound travel faster
No
They travel faster through solids
NO they can not travel faster than sound in thunder and lightning