If two objects are compared at a certain distance, according to Newton's law of universal
gravitation, what is true? Both objects have mass and therefore have...
A.) stronger gravitational force.
B.) less gravitational force.
C.) a gravitational force

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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