After studying 30 years' worth of previous work, kepler became convinced that geometry and mathematics could explain the number, distance, and motion of the planets.

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the answer would be   dignified - apex

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.

hope this ! this is not copied! search it up, it's free of plagiarism!

i'm on my way to history not a mistory.