Choose the letter of the best description of the nature of light: a. light always behaves like waves. b. light always behaves like particles. c. light sometimes behaves like waves and at other times like particles. d. light never behaves like either waves or particles.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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