Explain why liquids solidify when they are cooled.

Atoms distance is reduced .

Explanation:

In liquids atoms locate themselves relatively at more distance as compared to solids. When energy is extracted out of liquids and atoms are left to come closer they arrange themselves at shorter distance and solidify .

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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