High- and low-pressure areas leading to air movement happen when there are differences in which factor? clouds

density

atmosphere

precipitation

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The answer is density

Explanation:

They density of the air is what makes a difference.

a.   mass number from atomic number

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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