A sound wave passes from air into water and then into steel. With each change in medium, what happens to the speed of the wave?
А
It increases
B
It decreases. C
It increases then decreases
D
It decreases then increases

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

What is a costume plot? why is it important to a film or theater production?