Abeam of light leaves a transparent material and enters vacuum at an oblique angle. leaving the material, the light beam will : a) continue to travel in the same direction. b) be completely reflected. c) bend toward the surface normal. d) bend away from the surface normal.

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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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it is b. absorbs thermal energy