What behavior of light proves that it is a wave? Hint: Will this only happen because light is a wave, what could it also be true of fast-moving particles? A redshift and blueshift
B reflection of light
C light changes speed in glass and water
D absorption of light

A. Redshift and Blueshift

Explanation:

It’s red shift and blue shift, because this only occurs when the frequency of the wave is made longer or shorter due to the movement of the source relative to the observer.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles