The tenth pair of cranial nerves is the longest in the body and leaves by way of the jugular foramen. these nerves are called

Vagus nerves

Explanation:

The vagus nerves are the tenth pair of cranial nerves

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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